**Air Pollution,** control in HNO_{3} plants | 2 |

**Banks, Sir Joseph,** Janety writes to | 64 |

**Brazing,** dissimilar metals, with Pd alloys, *a* | 150 |

Pd alloys for | 105 |

**Capacitors,** monolithic ceramic | 46 |

**Carbon,** in steel-making, determination of | 82 |

**Cardiac Pacemaker,** Pt plating in, *a* | 32 |

**Catalysis,** activity of blacks, *a* | 112 |

homogeneous, organometallic reactions in, *a* | 153 |

Pt metals in, 4th International Congress on | 136 |

**Catalysts,** for fuel cells | 21 |

metals, periodic variations in properties of | 100 |

**Iridium,** interactions of H_{2} and CO on, *a* | 34 |

complexes, decomposition of HCOOH by, *a* | 36 |

complexes, for homogeneous hydrogenation, *a* | 114 |

**IrH**_{3}(PPh_{3})_{3}, hydrogenation of aldehydes by, *a* | 36 |

**Ir/C,** isomerisation of hexenes on, *a* | 113 |

**Ir/SiO**_{2}, hydrogenolysis of C_{2}H_{6} on, *a* | 34 |

**Os/C,** isomerisation of hexenes on, *a* | 113 |

**OsO**_{4}, oxidation of olefins on, *a* | 114 |

**Palladium,** alloys, activity of, *a* | 72 |

black, specific surface of, *a* | 71 |

black, surface area of, *a* | 151 |

borided, hydrogenation of double bonds on, *a* | 152 |

complexes, carbonylation of olefins on, *a* | 153 |

complexes, dimerisation of butadiene with, *a* | 153 |

complexes, hydrogenation of polyolefins by, *a* | 35 |

complexes, isomerisation of *n* -phenylbutenes by, *a* | 114 |

complexes, oxidation of olefins by, *a* | 73 |

complexes, unsaturated compounds on, *a* | 152 |

dehydrocyclisation of paraffins by, *a* | 71 |

halide complexes, organic syntheses with, *a* | 152 |

hydrogenolysis of cyclopropanes at, *a* | 113 |

oxidation of C_{2}H_{4} on, *a* | 113 |

soluble, polymerisation of allene with, *a* | 152 |

tape, dehydrocyclisation of *n* -C_{6}H_{14}, *a* | 151 |

**Pd(acac)**_{2}/SiO_{2}, isomerisation of C_{4}H_{8} on, *a* | 151 |

**PdCl**_{2}, activity of olefin complexes of, *a* | 73 |

complexes, carbonylation by, *a* | 74 |

conversion of acetylene compounds by, *a* | 114 |

decarbonylation of acyl halides by, *a* | 114 |

isomerisation of α-olefins, *a* | 114 |

**PdCl**_{2}-CuCl_{2}, oxidation of cyclohexene by, *a* | 35 |

oxidation of olefins by, *a* | 35 |

**PdCl**_{2}-TiCl_{3}, polymerisation of olefin mixtures by, *a* | 73 |

**Pd/Al**_{2}O_{3}, disproportionation of cyclohexene on, *a* | 34 |

hydrogenation of 6-mcthylhepta-3, 5-dien-2-one on, *a* | 113 |

isomerisation of 1-C_{4}H_{8} on, *a* | 151 |

organosilicon hydride reactions on, *a* | 35 |

reduction of nitrogen oxides on, *a* | 72 |

retention of H_{2} by, *a* | 71 |

surface area of, *a* | 151 |

**Pd/CaCO**_{3}, hydrogenation of 6-methylhepta-3, 5-dien-2-one on, *a* | 113 |

**Pd/C,** organosilicon hydride reactions on, *a* | 35 |

**Pd/clay,** conversion of C_{6}H_{6} and naphthalene derivatives on, *a* | 73 |

**Pd/SiO**_{2}, hydrogenolysis of C_{6}H_{6} on, *a* | 34 |

surface area of, *a* | 151 |

**Pd/TiO**_{2}, hydrogenation of 6-methylhcpta- 3, 5-dien-2-one on, *a* | 113 |

**Pd/zeolite,** isomerisation activity of, *a* | 72 |

**Pd-Ru,** deactivation of, by S-organic compounds, *a* | 73 |

**Pd-Ag,** decomposition of HCOOH on, activity of, *a* | 113 |

film, oxidation of C_{2}H_{4} on, *a* | 34 |

film, para-ortho H_{2} conversion on, *a* | 33 |

**Palladium Sulphide,** hydrogenation of halonitrobenzenes on, *a* | 72 |

**Platinum,** activity in solution of, *a* | 148 |

atomisation of O_{2} on, *a* | 150 |

black, activation energy of, *a* | 33 |

black, specific surface of, *a* | 71 |

borided, hydrogenation of double bonds on, *a* | 152 |

complexes, oxidation of CO by, *a* | 73 |

complexes, hydrogenation of polyolefins by, *a* | 35 |

compounds, isotopic H_{2} labelling by, *a* | 113 |

dehydrocyclisation of paraffins on, *a* | 71 |

electrode, H_{2}-O_{2} reaction on, *a* | 148 |

halide complexes, organic syntheses with, *a* | 152 |

hydrogenolysis of cyclopropanes at, *a* | 113 |

interaction of H_{2} and CO on, *a* | 34 |

isomerisation of alkanes on, *a* | 33 |

powder, isotopic exchange of O_{2} on, *a* | 112 |

**Pt(PPh**_{3})_{4}, initiation of vinyl polymerisation by, *a* | 113 |

**Pt-Cu,** hydrogenation of C_{6}H_{6} on, *a* | 71 |

**Platinum Metals,** activity of, *a* | 72 |

hydrogenolysis of cyclic hydrocarbons on, *a* | 71 |

review of, in industry, *a* | 71 |

tertiary phosphine complexes, homogeneous | 50 |

**Platinum Metals/C,** isomerisation of dialkylcyclanes on, *a* | 34 |

isomerisation of methylpentenes on, *a* | 152 |

**Platinum Metals/pumice,** hydrogenation of allene on, *a* | 113 |

hydrogenation of methylacetylene on, *a* | 152 |

**Pt/Al**_{2}O_{3}, activation energy of, *a* | 33 |

aromatisation of *n* -paraffins on, *a* | 150 |

C_{5}- and C_{6}-dehydrocyclisation on, *a* | 150 |

conversion of C_{3}H_{6} on, *a* | 112 |

dehydrocyclisation on, *a* | 71 |

dehydrocyclisation of 2-*n* -butylnaphthalene on, *a* | 150 |

dehydrogenation of cyclohexane on, *a* | 151 |

dehydrogenation of decalin on, *a* | 33 |

deuteration of alkanes on, *a* | 33 |

exoelectronic emission of, *a* | 71 |

fluorided, hydroisomerisation of *n* -paraffins, on *a* | 150 |

hydrogenation of cycloalkenes from the liquid on, *a* | 112 |

hydrogenation of cycloalkenes on, *a* | 151 |

hydrogenation of methylcyclopentane on, *a* | 72 |

promoted, dehydrocyclisation of paraffins on, *a* | 151 |

reduction of nitrogen oxides on, *a* | 72 |

retention of H_{2} by, *a* | 71 |

surface transport of gases on, *a* | 150 |

**Pt/asbestos,** hydrogenation of C_{6}H_{6} on, *a* | 72 |

**Pt/C,** hydrogenation of methylcyclopentane on, *a* | 72 |

organosilicon hydride reactions on, *a* | 35 |

**Pt/SiO**_{2}, activation energy of, *a* | 33 |

C_{6}H_{6} hydrogenation, specific activity of, *a* | 112 |

chemisorption of O_{2} on, *a* | 72 |

dehydrogenation of cyclohexane on, *a* | 113 |

hydrogenation of C_{2}H_{4} on, *a* | 151 |

hydrogenation of methylcyclopentane on, *a* | 72 |

hydrogenolysis of C_{2}H_{6} on, *a* | 34 |

isomerisation of *n* -C_{7}H_{16}, 1-methyl-2-ethylbcnzene on, *a* | 33 |

promoted, dehydrocyclisation of paraffins, on *a* | 151 |

structure and activity of, *a* | 33 |

surface area of, *a* | 72 |

**Pt/Torvex,** for air pollution control at HNO_{3} plants | 2 |

**Pt/zeolite,** hydrogenation of methylcyclopentane on, *a* | 72 |

isomerisation activity of, *a* | 72 |

isomerisation of cyclohexane on, *a* | 151 |

**Pt-Ru,** hydrogenation of organic compounds on, *a* | 72 |

**Pt-Ag,** hydrogenation of C_{6}H_{6} on, *a* | 71 |

**Pt-Sn,** complexes, hydrogenation of cyclohexene by, *a* | 35 |

hydrogenation of 1-hexene, unsaturated edible oils by, *a* | 35 |

isomerisation of 1-C_{5}H_{10} by, *a* | 35 |

**Platinum Sulphide,** hydrogenation of halonitrobenzenes on, *a* | 72 |

**Raney Ni-Pd,** electrooxidation of H_{2} and hydrogenation on, *a* | 33 |

**Raney Ni-Ru,** oxidation and hydrogenation on, *a* | 152 |

**Rhodium,** activity of, *a* | 73 |

black, specific surface of, *a* | 71 |

borided, hydrogenation of double bonds on, *a* | 152 |

carbonyls, hydrogenation of aldehydes on, *a* | 114 |

complexes, decarbonylation of aldehydes and acyl halides on, *a* | 114 |

complexes, decomposition of HCOOH by, *a* | 36 |

complexes, dimerisation of acrylonitrile on, *a* | 114 |

complexes, hydrogenation of steroids by, *a* | 74 |

complexes, polymerisation of allene by, *a* | 74 |

ions, reactions of olefins at, *a* | 153 |

interaction of H_{2} and CO on, *a* | 34 |

phosphine complexes, homogeneous | 135 |

**RhCl**_{3}, conversion of acetylenic compounds with, *a* | 114 |

polymerisation of butadiene by, *a* | 74 |

**RhCl**_{3}(SEt_{2})_{3}, hydrogenation of olefinic substrates with, *a* | 114 |

**Rh/Al**_{2}O_{3}, hydroisomerisation of 1-C_{4}H_{8} on, *a* | 151 |

organosilicon hydride reactions on, *a* | 35 |

retention of H_{2} by, *a* | 71 |

**Rh/C,** isomerisation of hexenes on, *a* | 113 |

organosilicon hydride reactions on, *a* | 35 |

**Rh/SiO**_{2}, activity of, *a* | 73 |

hydrogenolysis of C_{2}H_{6} on, *a* | 34, 152 |

hydroisomerisation of 1-C_{4}H_{8} on, *a* | 151 |

**Rhodium Sulphide,** hydrogenation of halonitrobenzenes on, *a* | 72 |

**Ruthenium,** black, specific surface of, *a* | 71 |

complexes, dimerisation of acrylonitrile with, *a* | 114 |

hydrogenation of sulpholene on, *a* | 73 |

hydrogenolysis of C_{2}H_{6} on, *a* | 152 |

interaction of H_{2} and CO on, *a* | 34 |

phosphine complexes, homogeneous | 135 |

polymethylene synthesis on, *a* | 73 |

**RuCl**_{3}, dimerisation of acrylonitrile by, *a* | 153 |

**Ru/Al**_{2}O_{3}, methanation over | 19 |

oxidation of NH_{3} on, *a* | 34 |

**Ru/C,** hydrogenation of olefins on, *a* | 152 |

isomerisation of hexenes on, *a* | 113 |

organosilicon hydride reactions on, *a* | 35 |

**Ru/SiO**_{2}, hydrogenolysis of C_{2}H_{6} on, *a* | 34 |

**RuO**_{2}, polymethylene synthesis on, *a* | 34 |

**RuO**_{4}, oxidation of cyclobutanols and aromatic rings on, *a* | 34 |

**Ru-Pd,** deactivation of, by S-organic compounds, *a* | 73 |

**Ru-Pt,** hydrogenation of organic compounds on, *a* | 72 |

**Cathodic Protection,** of salt water pipelines, *a* | 153 |

Pb-Pt bielectrodes, in sea water | 42 |

Pd-Ti in chloride solutions | 53 |

**Crucibles,** for crystal growing, *a* | 70 |

Pt, for silicate analysis, *a* | 32 |

**Crystal Growth,** garnet, *a* | 70 |

**Electrical Contacts, Pd,** alloys, contact resistance and wear of | 122 |

**Pd,** in telephone relays | 14 |

**Pt metals,** 4th International Symposium on | 129 |

**Electrodeposition of,** Chromium, Pt metal deposits in, *a* | 149 |

**Iridium,** electrolytes for, *a* | 70 |

on W, *a* | 70 |

**Palladium,** ductile, *a* | 149 |

electrocrystallisation of, *a* | 111 |

hard Cr plating by, *a* | 149 |

thick coatings | 20 |

**Pd-Ni,** composition, yield and physical properties of, *a* | 112 |

**Pd-Ag,** from cyanide electrolytes, *a* | 32 |

**Platinum,** hard Cr plating by, *a* | 149 |

hardness of deposits in, *a* | 32 |

on cardiac pacemaker components, *a* | 32 |

thick coatings | 20 |

**Pt Metal Alloys,** from bromide electrolytes, *a* | 112 |

**Pt-Re,** hardness of deposits in, *a* | 32 |

**Rhodium,** corrosion resistance on Ni of, *a* | 149 |

**Electrodes, Iridium,** bright, O_{2} overvoltage on, *a* | 149 |

reaction with O_{2}, *a* | 70 |

Rh and Ru surfaces, H_{2} adsorption, *a* | 70 |

**Pb-Pt,** for cathodic protection | 42 |

**Nickel,** Pt-activated, in fuel cells, *a* | 153 |

**Osmium,** Rh and Ru surfaces, H_{2} adsorption, *a* | 70 |

**Palladium,** anodic behaviour of, *a* | 111 |

microcoulometry using, *a* | 150 |

reaction with O_{2}, *a* | 70 |

**Pd-Au,** reduction of O_{2} at, *a* | 31, 32 |

**Platinum,** adsorption of C_{3}H_{8} on, *a* | 31 |

anode, perchlorate production on, *a* | 148 |

anodic oxidation of CO on, *a* | 148 |

black, for NH_{3}-O_{2} fuel cell, *a* | 114 |

black, oxidation of C_{3}H_{8} on, *a* | 32 |

catalytic activity of, *a* | 111 |

electrochemical activation of, *a* | 70 |

glass viscosity measured with, *a* | 75 |

H atom-organic layer interaction, *a* | 148 |

in molten-carbonate fuel cell, *a* | 74 |

on C, Ta in fuel cells, *a* | 74 |

oxidation of CH_{3}OH on, *a* | 149 |

platinised, oxidation of CH_{3}OH on, *a* | 70 |

rate of H_{2}-O_{2} reaction on, *a* | 148 |

reaction with O_{2}, *a* | 70 |

surface area of, *a* | 31 |

surface oxidation and reduction of, *a* | 148 |

**Pt-Au,** reduction of O_{2} at, *a* | 31, 32 |

**Pt Metals,** in monolithic ceramic capacitors | 46 |

**Pt/Ti,** anodes, for Ni- and Cr-plating, *a* | 149 |

anodes, in salt water pipelines, *a* | 153 |

anodes, in sewage purification, *a* | 153 |

**Pt-Ru,** compact and dispersed, *a* | 70 |

in fuel cells, *a* | 153 |

oxidation of CH_{3}OH on, *a* | 70, 149 |

**Rhodium,** bright, O_{2} overvoltage on, *a* | 149 |

reaction with O_{2}, *a* | 70 |

**Ruthenium,** oxidation of CH_{3}OH on, *a* | 149 |

**Ru-Pt,** compact and dispersed, *a* | 70 |

in fuel cells, *a* | 153 |

oxidation of CH_{3}OH on, *a* | 70, 149 |

**Schottky Diodes,** Pt silicide in | 106 |

**Ag-Pd,** cathodes, for H_{2} purification | 15 |

**Field Ion Microscopy,** Pt, *a* | 149 |

Pt emitters for, *a* | 71 |

study of Pt_{3}Co by, *a* | 29 |

**Fluorescence,** Rh-activated Al_{2}O_{3}, *a* | 75 |

**Fuel Cells,** NH_{3}-O_{2}, *a* | 115 |

availability of Pt for | 48 |

catalysts | 21 |

H_{2}-O_{2}, Pt electrode in, *a* | 74 |

H_{2}-O_{2}, Pt/Ta and Pt/C electrodes in, *a* | 74 |

Ni electrodes, Pt-activated, *a* | 153 |

Ru-Pt electrodes in, *a* | 153 |

**Furnaces,** Rh-Pt elements for | 86 |

**Gaspak-H,** cell for ultra-pure H_{2} | 15 |

**Glass,** molten, Pt-clad equipment for | 92 |

Rh-Pt melting apparatus, *a* | 75 |

viscosity of, *a* | 75 |

wetting of, on Pt and Pt alloys, *a* | 36 |

**Hydrogen,** absorption on Pd alloys, *a* | 109 |

ultra-pure | 15 |

**Hydrogen Diffusion,** in Ag-Pd cathodes | 15 |

in Pd | 107 |

**Iridium,** brittle fracture of, *a* | 146 |

coating on W, *a* | 70 |

friction of | 61 |

hot working of, *a* | 68 |

susceptibility of, temperature dependence of, *a* | 29 |

thermal expansion of, *a* | 146 |

toughens Fe-C alloys, *a* | 31 |

vapour phase deposition of, on graphite | 62 |

**Iridium Alloys, Iridium-Iron,** activity in, *a* | 147 |

**Iridium-Osmium,** magnetic susceptibilities of, *a* | 110 |

superconductivity, susceptibility and specific heat, in *a* | 110 |

**Iridium-Palladium,** structure of, *a* | 67 |

superconductivity, susceptibility and specific heat in, *a* | 110 |

**Iridium-Platinum,** slit jaws, *a* | 71 |

superconductivity, susceptibility and specific heat of, *a* | 110 |

thermal conductivity of, *a* | 29 |

thermoelectric power of, *a* | 109 |

**Iridium-Plutonium,** constitution diagram of, *a* | 69 |

**Iridium-Rhenium,** magnetic susceptibilities of, *a* | 110 |

superconductivity, susceptibility and specific heat of, *a* | 110 |

**Iridium-Rhodium,** superconductivity, susceptibility and specific heat of, *a* | 110 |

**Iridium-Rhodium-Iron,** magnetic transitions in, *a* | 110 |

**Iridium-Ruthenium,** superconductivity, susceptibility and specific heat of, *a* | 110 |

**Iridium-Sulphur,** structure of, *a* | 68 |

**Iridium-Uranium,** structure of, *a* | 147 |

**Iridium Bromide,** preparation of, *a* | 110 |

**Iridium Complexes,** carbonyl halide, *a* | 31 |

review of π-allyl, *a* | 31 |

review of book on | 47 |

**Iridium Compounds,** preparation of thio-compounds, *a* | 111 |

**Iridium Hexafluoride,** oxidising properties of, *a* | 148 |

**Iridium Tetrafluoride,** structure of, *a* | 31 |

**Iridium Triiodide,** thermal dissociation of, *a* | 110 |

**Janety, Marc Etienne,** sales of Pt by | 64 |

**Johnson Matthey,** research, fifty years of | 22 |

**Laser Crystals,** production of | 16 |

**Microcoulometry,** N_{2} analysis by, *a* | 150 |

**Osmium,** complexes, carbonyl halide, *a* | 31 |

complexes, review of book on | 47 |

compounds, preparation of oxide chlorides, *a* | 111 |

friction of | 61 |

susceptibility of, temperature dependence of, *a* | 29 |

**Osmium Alloys, Osmium-Arsenic,** decomposition of, *a* | 69 |

**Osmium-Iridium,** magnetic susceptibilities of, *a* | 110 |

superconductivity, susceptibility and specific heat of, *a* | 110 |

**Osmium-Platinum,** magnetic susceptibilities of, *a* | 110 |

**Osmium-Rhenium,** magnetic susceptibilities of, *a* | 110 |

**Osmium-Rhenium-Tungsten,** preparation and properties of, *a* | 30 |

**Osmium-Selenium,** decomposition of, *a* | 69 |

**Osmium Hexafluoride,** oxidising properties of, *a* | 148 |

**Pallabraze,** brazing alloys | 105 |

**Palladium,** activator for W sintering, *a* | 75 |

complexes, review of *π* -allyl, *a* | 31 |

compounds, preparation of thio-compounds, *a* | 111 |

diffusion of H_{2} and D_{2} in, *a* | 67 |

diffusion of H_{2} allotropcs in | 107 |

foils, study of, *a* | 150 |

Lorenz number at low temperatures, *a* | 67 |

magnetic properties of, *a* | 67 |

review of book on | 98 |

susceptibility of, temperature dependence of, *a* | 29 |

Young’s modulus of, *a* | 146 |

**Palladium Alloys,** brazing with | 105 |

potentiometer slidewires of | 54 |

**Palladium-Antimony,** lattice parameters of, *a* | 109 |

structure of, *a* | 110 |

**Palladium-Boron,** electrical resistance of, *a* | 30 |

**Palladium-Cadmium,** lattice parameters of, *a* | 109 |

**Palladium-Cerium,** constitution of, *a* | 30 |

**Palladium-Chromium,** electrical resistance of, *a* | 30 |

structure of, *a* | 30 |

viscosity of, *a* | 67 |

**Palladium-Cobalt,** thermodynamic properties of, *a* | 109 |

**Palladium-Copper,** thermodynamic properties of, *a* | 108 |

**Palladium-Deuterium,** electrical resistivity of, *a* | 146 |

**Palladium-Gold,** brazing with, *a* | 150 |

films, diffusion in, *a* | 146 |

thick-film conductors | 139 |

**Palladium-Gold-Molybdenum,** electrical contacts | 122 |

**Palladium-Hydrogen,** ageing and cold working of, *a* | 30 |

electrical resistivity, of *a* | 146 |

papers from Münster symposium on | 140 |

**Palladium-Hydrogen-Gold,** absorption of H_{2} on, *a* | 109 |

**Palladium-Iridium,** structure of, *a* | 67 |

superconductivity, susceptibility and specific heat of, *a* | 110 |

**Palladium-Iron,** magnetic properties of, *a* | 68, 109 |

structural transformations of, *a* | 109 |

**Palladium-Iron-Nickel,** thermal expansion of, *a* | 147 |

**Palladium-Iron-Nickel-Cobalt,** thermal expansion of, *a* | 147 |

**Palladium-Manganese,** structure and magnetic properties of, *a* | 68 |

**Palladium-Nickel,** enthalpy of formation of, *a* | 109 |

reaction of H_{2} with, *a* | 146 |

specific heat of, *a* | 109 |

**Palladium-Platinum,** enthalpy of formation of, *a* | 109 |

thermoelectric power of, *a* | 109 |

**Palladium-Platinum-Iron,** magnetic transitions in, *a* | 68 |

**Palladium-Platinum-Molybdenum,** strain gauges | 106 |

**Palladium-Plutonium,** constitution diagram of, *a* | 69 |

**Palladium-Rhodium,** H_{2} diffusion in | 141 |

thermoelectric power of, *a* | 109 |

**Palladium-Rhodium-Iron,** magnetic transitions in, *a* | 110 |

**Palladium-Ruthenium,** magnetic susceptibilities of, *a* | 110 |

**Palladium-Silieon,** electrical resistance of, *a* | 30 |

viscosity of, *a* | 67 |

**Palladium-Silver,** electrical contacts | 122 |

electrical resistance of, *a* | 30 |

thermal conductivity of, *a* | 29 |

thermodynamic properties of, *a* | 109 |

thermoelectric power of, *a* | 109 |

viscosity of, *a* | 67 |

**Palladium-Silver-Hydrogen,** physical properties of, *a* | 30 |

**Palladium-Silver-Tellurium,** structure of, *a* | 146 |

**Palladium-Titanium,** corrosion resistance of | 53 |

structure of, *a* | 109 |

**Palladium-Vanadium,** electrical contacts | 122 |

**Palladium Oxide,** equilibria with rare earths, *a* | 147 |

**Palladium Tetrafluoride,** structure of, *a* | 31 |

**Platinum,** black, surface-active cations on, *a* | 148 |

claddings for molten glass handling equipment | 92 |

complexes, review of *π* -allyl, *a* | 31 |

compounds, preparation of thio- and seleno-compounds, *a* | 111 |

creep properties, at high temperatures | 7 |

crucibles, for silicate analysis, *a* | 32 |

deformed, quenching of, *a* | 108 |

dispersion strengthened by carbides | 7 |

electrical resistivity of, *a* | 108 |

emitters for field ion microscopy, *a* | 71 |

first refiners, arsenic process of | 142 |

high purity reference standard | 45 |

in stainless steel, corrosion protection | 13 |

interaction with carbides, *a* | 108 |

interdiffusion with refractory metals, *a* | 108 |

microcrystals, *a* | 29 |

production and availability | 48, 139 |

Raney, specific surface and activity of, *a* | 148 |

sales in the French revolution | 64 |

smooth tips for field ion microscopy, *a* | 149 |

specific heat of, *a* | 108 |

susceptibility of, temperature dependence of, *a* | 29 |

thermal conductivity of, *a* | 108 |

thermal diffusivity of, *a* | 29 |

toughens Fe-C alloys, *a* | 31 |

vacancies in, *a* | 29, 108 |

wetting of glass on, *a* | 36 |

**Platinum Alloys,** potentiometer slidewires of | 54 |

**Platinum-Antimony,** preparation and electrical properties of, *a* | 108 |

**Platinum-Arsenic,** decomposition of, *a* | 69 |

**Platinum-Beryllium,** wetting of glass on, *a* | 36 |

**Platinum-Cobalt,** magnetic properties of, *a* | 146 |

structure of, *a* | 29 |

**Platinum-Copper,** heat of ordering of, *a* | 67 |

thermodynamic properties of, *a* | 108 |

**Platinum-Dysprosium,** magnetic properties of, *a* | 67 |

**Platinum-Erbium,** magnetic properties of, *a* | 67 |

**Platinum-Gadolinium,** magnetic properties of, *a* | 67 |

**Platinum-Gold,** structure of, *a* | 29 |

thermoelectric power of, *a* | 109 |

wetting of glass on, *a* | 36 |

**Platinum-Holmium,** magnetic properties of, *a* | 67 |

**Platinum-Iridium,** slit jaws, *a* | 71 |

superconductivity, susceptibility and specific heat in, *a* | 110 |

thermal conductivity of, *a* | 29 |

thermoelectric power of, *a* | 109 |

wetting of glass on, *a* | 36 |

**Platinum-Iron,** magnetic structure of, *a* | 29 |

**Platinum-Manganese,** structure and magnetic properties of, *a* | 67 |

**Platinum-Molybdenum,** phase equilibria in | 134 |

**Platinum-Neodymium,** magnetic properties of, *a* | 67 |

**Platinum-Nickel,** enthalpy of formation of, *a* | 109 |

**Platinum-Osmium,** magnetic susceptibility of, *a* | 110 |

**Platinum-Palladium,** enthalpy of formation of, *a* | 109 |

thermoelectric power of, *a* | 109 |

**Platinum-Palladium-Iron,** magnetic transitions in, *a* | 68 |

**Platinum-Palladium-Molybdenum,** strain gauges | 106 |

**Platinum-Plutonium,** constitution diagram of, *a* | 69 |

**Platinum-Praseodymium,** magnetic properties of, *a* | 67 |

**Platinum-Rhenium,** magnetic susceptibility of, *a* | 110 |

**Platinum-Rhodium,** cladding for isotope fuel capsule in space | 88 |

crucibles for crystal growing, *a* | 70 |

for glass melting, *a* | 75 |

furnace elements | 86 |

interdiffusion with refractory metals, *a* | 108 |

wetting of glass on, *a* | 36 |

**Platinum-Terbium,** magnetic properties of, *a* | 67 |

**Platinum Carbide,** dissociation of, *a* | 69 |

**Platinum Hexafluoride,** oxidising properties of, *a* | 148 |

**Platinum Metals,** electrical contacts, 4th | |

International Symposium on | 129 |

for laser crystal production | 16 |

nitrosyl complexes | 131 |

organometallic chemistry of | 89 |

semiconducting complexes, *a* | 69 |

sulphates, properties of, *a* | 147 |

susceptibility, temperature dependence of, *a* | 29 |

tertiary phosphine complexes | 50 |

thermochemistry of | 138 |

**Platinum Oxide,** gaseous, *a* | 69 |

PtO_{2}, rutile-type, *a* | 147 |

pyrochlore-type, *a* | 147 |

**Platinum Silicide,** in Schottky diodes | 106 |

**Platinum Tetrafluoride,** structure of, *a* | 31 |

**Potentiometers,** slidewire materials for | 54 |

**Research,** Johnson Matthey, fifty years of | 22 |

**Resistance Thermometers,** Pt, at 2−10°K, *a* | 36 |

Pt, birdcage, *a* | 36 |

Pt, calibration at 2−273.15°K, *a* | 154 |

Pt, miniature, calibration and stability of, *a* | 154 |

Pt, scale at 2−20°K, *a* | 154 |

Pt, self-heating in | 6 |

Pt, temperature scales 11−273°K, *a* | 114 |

**Resistors,** glazes, Ru, for thick film circuits | 99 |

**Rhodium,** coatings, wear behaviour of, *a* | 112 |

complexes, olefin, *a* | 31 |

complexes, review of *π* -allyl, *a* | 31 |

complexes, review of book on | 47 |

foils, study of, *a* | 150 |

friction of | 61 |

hot working of, *a* | 68 |

interdiffusion with refractory metals, *a* | 108 |

susceptibility of, temperature dependence of, *a* | 29 |

toughens Fe-C alloys, *a* | 31 |

**Rhodium Alloys, Rhodium-Iridium,** | |

superconductivity, susceptibility and specific heat in, *a* | 110 |

**Rhodium-Iridium-Iron,** magnetic transitions in, *a* | 110 |

**Rhodium-Iron,** activity in, *a* | 147 |

magnetic transitions in, *a* | 110 |

transformations in, *a* | 30 |

**Rhodium-Iron-Nickel,** thermal expansion of, *a* | 147 |

**Rhodium-Iron-Nickel-Cobalt,** thermal expansion of, *a* | 110 |

**Rhodium-Iron-Palladium,** magnetic transitions in, *a* | 110 |

**Rhodium-Molybdenum,** magnetic susceptibilities of, *a* | 110 |

**Rhodium-Palladium,** H_{2} diffusion in | 141 |

thermoelectric power of, *a* | 109 |

**Rhodium-Palladium-Iron,** magnetic transitions in, *a* | 110 |

**Rhodium-Platinum,** cladding for isotope fuel capsule in space | 88 |

crucibles for crystal growing, *a* | 70 |

for glass melting, *a* | 75 |

furnace elements | 86 |

interdiffusion with refractory metals, *a* | 108 |

**Rhodium-Plutonium,** constitution diagram of, *a* | 69 |

**Rhodium-Ruthenium,** magnetic susceptibility of, *a* | 110 |

**Rhodium-Selenium,** structure of, *a* | 68 |

**Rhodium-Sulphur,** structure of, *a* | 68 |

**Rhodium-Titanium,** superconductivity and specific heat of, *a* | 68 |

**Rhodium-Titanium group metals, A**_{3}B_{5} phases in, *a* | 110 |

**Rhodium-Uranium,** structure of, *a* | 147 |

**Rhodium Bromide,** structure of, *a* | 69 |

**Rhodium Carbide,** dissociation of, *a* | 69 |

**Rhodium Iodide,** structure of, *a* | 69 |

**Rhodium Oxide,** RhO_{2}, rutile-type, *a* | 147 |

**Rhodium Tetrafluoride,** structure of, *a* | 31 |

**Rustenburg,** increased output of platinum from, | 139 |

**Ruthenium,** complexes, carbonyl halide, *a* | 31 |

complexes, formation of [Ru(NH_{3})_{5}N_{2}]^{2+}, *a* | 111 |

complexes, of N_{2}, *a* | 70 |

complexes, review of π-allyl, *a* | 31 |

complexes, review of book on | 47 |

complexes, of triphenylphosphine with N_{2} and H_{2}, *a* | 111 |

compounds, fixation of atmospheric N_{2} by | 111 |

foils, production and study of, *a* | 150 |

friction of | 61 |

resistor glazes for thick film circuits | 99 |

susceptibility of, temperature dependence of, *a* | 29 |

thermionic work function of, *a* | 30 |

toughens Fe-C alloys | 31 |

**Ruthenium Alloys, Ruthenium-Iridium,** | |

superconductivity, susceptibility and specific heat of, *a* | 110 |

**Ruthenium-Iron,** thermodynamic properties of, *a* | 68 |

**Ruthenium-Iron-Nickel,** thermal expansion of, *a* | 147 |

**Ruthenium-Iron-Nickel-Cobalt,** thermal expansion of, *a* | 147 |

**Ruthenium-Molybdenum,** magnetic susceptibility of, *a* | 110 |

**Ruthenium-Niobium,** magnetic susceptibility of, *a* | 110 |

**Ruthenium-Palladium,** magnetic susceptibility of, *a* | 110 |

**Ruthenium-Plutonium,** constitution diagram of, *a* | 69 |

**Ruthenium-Rhodium,** magnetic susceptibility of, *a* | 110 |

**Ruthenium-Selenium,** decomposition of, *a* | 69 |

**Ruthenium-Uranium,** intermetallic compound of, *a* | 110 |

structure of, *a* | 147 |

**Ruthenium Bromide,** crystal structure of, *a* | 110 |

**Ruthenium Dioxide,** and its hydrate, magnetic and electrical properties of, *a* | 111 |

**Ruthenium Oxide,** RuO_{2}-O_{2}-RuO_{4} equilibrium, *a* | 147 |

**Ruthenium Trichloride,** structure of, *a* | 31 |

**Schottky Diodes,** Pt silicide in | 106 |

Semiconductors, metal complex, *a* | 69 |

**Space,** Pt-clad isotope fuel capsule in | 88 |

**Steel,** determination of C in | 82 |

**Strain Gauges,** high temperature | 106 |

**Telephones,** Pd contacts in relays for | 14 |

**Thallium Platinate,** synthesis of, *a* | 69 |

**Thermocouples, Pallador I,** Hall effect measured by, *a* | 75 |

**Platinum:Rhodium-Platinum,** accuracy of, *a* | 154 |

expendable cartridge | 82 |

in glass furnace, *a* | 75 |

in X-ray furnaces, *a* | 154 |

stability of, *a* | 36 |

**Rhodium-Platinum,** effect of clinker on sheaths of, *a* | 154 |

**Rhodium-Platinum: Rhodium-Platinum,** protective casings for, *a* | 154 |

stability of, *a* | 36 |

**Wollaston, W. H.,** lecture by | 66 |