XXVlll 



Index 



Nature, 

 .February 2, 1922 



Nebulae : and Clusters, Studies of, C. Flammarion, 193 ; 



Visual and Photographic Observations of. Comparison 



between, G. Abetti, 390 

 Nebular Lines in Spectrum of R Aquarii, P. Merrill, 98 

 Nedb^riakttagelser i Norge, 512 

 Nervous System, Release of Function in the (Croonian 



Lecture), Dr. H. Head, 26 

 Newt and Slow-worm, Breeding Periods of, R. Elmhirst, 



179 

 Xewton, Alfred : Ornithologist, 333 ; Life of. Professor 



of Comparative Anatomy, Cambridge University, 



1 866-1 007, A. F. R. Wollaston, 333 

 Newton Abbot, A Composite Sill at", W. G. St. John 



Shannon, 483 

 New York Aquarium, Report of the Director of the, for 



1920, 509 

 Nickel-Aluminium-Copper Alloys, Properties of some. 



Prof. A. A. Read and R. H. Greaves, 197 

 Nickel Chloride, The Equilibrium in the Reduction of, by 



Hvdrogen, E. Berger and G. Crut, 486 

 Night Sky, Light of the. Prof. C. Fabry, 319 

 Nitrogen : Problem, The, 439 ; Products Committee of 



the Ministry of Munitions, Statistical Supplement to 



the Final Report of the, 439 

 Xobel Prize for Chemistr}^ for 1920, Award of the, to Prof. 



• W. Nemst, 380 

 Noeggerathiopsis from the Lower Coal Measures of N.S.W., 



A. B. Walkom, 517 

 Nomenclature, Curiosities of, Rev. T. R. R. Stebbing, 340 

 Norfolk and Norwich Naturalists' Society, Transactions 



of the, Vol. ii., part 2, 545 

 North-East Coast Institution of Engineers and Ship- 

 builders, Awards of the, 317 

 North of Scotland College of Agriculture, Calendar of the, 



196 

 Norwegian Meteorology, 512 

 Norwegischen Meteorologischen Instituts, Jahrbuch dcs, 



for 1920, 254 

 Nottingham, University College, J. Barr appointed 



Manager of the Yarn-testing Bureau at, 71 

 Nova Aquilae, 384 

 Novelty, Dr. F. C. S. Schiller, 294 

 Numbers in Space, The Visualisation of. Prof. T. H. Pear, 



325 

 Nyctalus Leisleri, Curious Flight by, A. \V. Stelfox, 16^ 



Oceanography : A Text-book of, Dr. J. T. Jenkins, 38 ; 

 Edinburgh and the Rise of. Prof. W. A. Herdman 

 (an Evening Discourse to the British Association), 30^ 



Official Seed Testing Station, Impending Instruction at 

 the, 420 



Oil in Sussex, 288 



Oils, The Volatile, E. Gildemeister and Fr. Hoffmann. 

 Second edition by E. Gildemeister. Translated by 

 E. Kremers. Vol. II., 138 



Oleoleucites in the Liverworts carrj'ing Leaves, Origin of 

 the, A. Kozlowski, 199 



Olympia Agricultural Co., Ltd., Research Department. 

 First Annual Report, 1921, 549 



Ophion htteus. Sir Herbert Maxwell, 339, 436 ; Dr. C. J. 

 Gahan, R. Stenton, 403 



Oppau : The Explosion at the Nitrogen Fixation Works, 

 137, 223, 278, 349, 382 ; The Atmospheric Wave 

 produced bv, L. Fabrv, 294 



Optaphe, The, j. W. Giltay, 510 



Optic Axes of a Crystal, The Determination of the, from 

 Extinction-angles, Prof. H. Hilton, 388 



Optical : Glass, Prismatic Structure in. Dr. J. W. French, 

 567 ; Industries, The Development of, J. W. Atha 

 and Co., 238 ; The Writer of the Article, 239 ; Dr. J. 

 Weir French, 304 ; M. P. Swift, Prof. K. C. Browning, 

 305 ; Instruments, Geometrical Investigation of the 

 Formation of Images in, embodying the Results of 

 Scientific Researches conducted in German Optical 

 Workshops. Edited by M. von Rohr. Translated by 

 R. Kanthack 109 ; Society of America, Helmholtz 

 Memorial Meeting in connection with the, 316; 

 Wedges, 550. 



Orchard and Garden," " The, 289 



Ordnance Problems, The Applications of Physics to, 

 Dr. G. F. Hull, 290 



Organic : Analysis, Qualitative and Quantitative, E. De 

 Barry Barnett and P. C. L. Thorne, 564 ; Chemistry, 

 Calculations in. Prof. V. K. Bhagwat, 364 



Organism, Living, Integration in the. Prof. W. M. Bayliss, 



537 



Orientation in Egypt, Col. H. G. Lvons, 387 



Ornithology, Early Annals of, J. H. Gurney, 268 



Otters, R. i. Pocock, 163 



Oxford : Expedition to Spitsbergen, 1921, Ornithological 

 Observations, Rev. F. C. R. Jourdain, 151 ; Uni- 

 versity: J. H. Jeans appointed Halley Lecturer for 

 1922, 134 ; Appointments in, 262 



Oxidation and Oxidative Mechanisms in Living Tissues, 

 Prof. F. G. Hopkins, 353 



Oxygen, The Absorption Spectrum of, J. Duclaux and 

 P. Jeantet, 294 



Oyster : Native, Sex-change in the, W. L. Calderwood, 272 ; 

 Spat (1921), An, with Mature Male Sexual Products, 

 Dr. J. H. Orton, 300 



Pacific Ocean, Stanford's New Map of the, 465 



Paints, Painting, and Painters, Prof. H. E. Armstrong 



and C. A. Klein, 223 

 Palaeobiological Research, Methods of, O. Abel, 578 

 Palaeogeography, Methods of, Th. Arldt, 578 

 Palaeolithic Painting in a Pyrenean Cave, M. Burkitt, 384 

 Palaeontographical Society, E. T. Newton elected President 



of the, 576 

 Palaeontology, Progress in, 481 

 Palaeozoic Folding, The Late, in the Hunter River District, 



N.S.W., G. D. Osborne, 199 

 Paris : Academy of Sciences, Prize Awards of the, for 



1 92 1, 581 ; Ecole d' Anthropologic, P. Boncour 



appointed Professor of Criminal Anthropology, 324 ; 



Proposed Establishment of a Municipal Institute 



of Electrotherapy in, 316 ; Weather Statistics, 6 

 Pasteur, Louis : The Approaching Centenary of the Birth 



of, 23 ; The Birthplace of. Funds provided by J. D. 



Rockefeller for the Purchase of, 376 

 Pathogenic Organisms, Resistance of the Normal and 



Injured Plant Surface to the Entrvof, J. H. Priestley, 



589 

 Pearls : Japanese Culture, Dr. H. Lyster Jameson, 328 ; 



The Nucleus of Fine, L. Boutan, 389 

 Peat, The Carbonisation of, in Vertical Gas Retorts, 588 

 Penrose's Annual. Vol. 24 of the Process Year Book and 



Review of the Graphic Arts, 1922. Edited by W. 



Gamble, 326 

 Peronospora Schleideni, Unger, The Presence of Perennial 



Mvcelium in, P. A. Murphy, 304 

 Peru, Along the Snow-line of, 78 

 Petrified Palm-stem, A, from the Tertiary Rocks of 



Jammu, Dr. B. Sahni, 591 

 Petrographic Methods and Calculations, with some Ex- 

 amples of Results achieved. Dr. A. Holmes, 494 

 Petrol prepared from Rape Oil, A. Mailhe, 326 

 Phacops africanus, Lake, A. R. E. Walker, 318 

 Pharmacognosy, The Science of, 203 

 Pharmakognosie, Handbuch der. Prof. A. Tschirch. 



Band III., 203 

 Phase Theory, The Principles of the. Heterogeneous 



Equilibria between Salts and their Aqueous Solutions, 



Dr. D. A. Clibbens, 171 

 Pheasants : A Monograph of the, W. Beebe (in four 



volumes). Vol. 2, 233 ; Natural History of, 235 

 " Philosophical Magazine," The, Sir Oliver Lodge, 12 

 Phosphorescence, The Action of the Infra-red Rays on, 



M. Curie, 263 

 Photographic Abstracts, No. 3, 162 

 Photographic Equipment and Methods of Work for 



Travellers, Capt. J. B. L. Noel, 579 

 Photographs of Geological Interest, Report of the British 



Association Committee on, 509 

 Photography, Aerial, and Photo-topography, L.-P. Clerc, 



292 



