April 



Nature, "I 

 ?V II, J 9 12 J 



Index 



XXIX 



Natural History : Animal Sanctuaries in Labrador, Lieut. - 

 Col. W. Wood, 60 ; Natural History of Tyneside, L. Gill 

 and others, 158 ; Natural History and Antiquities of 

 Selborne, Gilbert White, 174; " My Tropic Isle," E. J. 

 Banfield, 283 ; Man and Beast in Eastern Ethiopia, J. 

 Bland-Sutton, Sir H. H. Johnston, G.C.M.G., K.C.B., 



346 



Natural Selection in Man, E. C. Snow, 361 



Nature Study : the Adventures of Jack Rabbit, R. Kearton, 

 Grace Kearton, 174 ; the Process of the Year, H. H. 

 Brown, 209 ; Methodical Nature Study, W. J. Claxton, 

 411 ; In the Guiana Forest : Studies of Nature in relation 

 to the Struggle for Life, J. Rodway, 518; a Nature 

 Calendar, Gilbert White, 584 



Nautical Almanacs : International Conference at Paris, 149 



Navy : Admiralty Reorganisation, 353 



Newfoundland, Physiography of, W. H. Twenhofel, 594 



New Zealand Scenery Preservation Board, 17 ; New 

 Zealand, Sir Robert Stout, K.C.M.G., and J. Logan 

 Stout, 75 



Nitrocellulose Industry, Dr. E. C. Worden, 69 ; Action of 

 Heat on Nitrocellulose, R. Fric, 403 



Nitrogen : Commercial Manufacture of Pure Nitrogen, G. 

 Claude, 33 ; a Chemically Active Modification of Nitrogen 

 produced by the Electric Discharge, Hon. R. J. Strutt, 

 97. 537 ; Spectroscopic Investigations in connection with 

 the Active Modification of Nitrogen, Hon. R. J. Strutt 

 and A. Fowler, 198 ; Methods of Observation of Dissocia- 

 tion of Nitrogen Peroxide, A. Colson, 573 



Norsemen in America : Lecture at the Royal Geographical 

 Society, 51 



North Sea Herrings, J. Hjort and E. Lea, 523 



Nutrition : Lipoids and Nutrition, Prof. Stepp, 157 ; 

 Nutritional Value of Individual Proteins, Dr. J. B. 

 Osborne, Dr. L. B. Mendel, Edna L. Ferry, 181 



Ophthalmic Practice, an International System of : Thera- 

 peutics, Dr. A. Darier, S. Stephenson, 137 



Osmosis, the Mechanism of, E. Fouard, 269 



Oxygen : Apparatus of Precision for the Use of Oxygen 

 Gas in Physiology and Therapeutics, R. Bayeux, 166 



Oysters : Crepidula fornicata, the " Slipper Limpet," Dr. 

 J. Murie, 132 ; Feeding Habits of Crepidula, J. H. 

 Orton, 213; Discovery of Later Stages of the Free- 

 swimming Larva of the Canadian Oyster, Dr. J. Stafford, 

 456 ; Purification of Oysters in Filtered Artificial Sea- 

 water, E. Bodin, 573 



Ozone, Physiological Influences of, L. Hill and M. Flack, 

 233 ; Industrial Uses of, Dr. F. Mollwo Perkin, 551 



Pace-length and Stature, Relation, Prof. Hammer, 457 



PalcTBobotany : History of Fossil Botany, Dr. D. H. Scott, 

 18; the Evolution of Plants, Dr. D. H. Scott, F.R.S., 

 39 ; the Palaeozoic Fern Zygopteris Grayi, Dr. D. H. 

 Scott, 132 ; a Suggested Reform in Palaeobotany, Dr. 

 Marie C. Stopes, 168 ; Forbesia cancellata, gen. et sp. 

 nov., Prof. T. Johnson, 23? : Floras of the Irish Car- 

 boniferous Rocks : Ballycastle, Antrim, E. A. Newell 

 Arber, 337 



Palaeolithic Paintings near Valencia, I'Abb^ H. Breuil, 562 



Palaeontology : Devonian Fauna of the Ouray Limestone in 

 Colorado, E. M. Kindle, 21 ; California, Palaeontology of 

 the Coalinga District, R. Arnold, 21 ; Fauna of the Phos- 

 phate Beds of the Park City Formation in Idaho, 

 Wyoming, and Utah, G. H. Girty, 21 ; Cambrian Fauna 

 on the North American Continent, C. D. Walcott, 22 ; 

 Blattidae of the Commentry Coal-measures, F. Meunier, 

 67 ; Palajontologia Indica : Mollusca of the Ranikot Beds of 

 Sind, M. Cossmann and G. Pissarro, E. W. Vredenburg : 

 Fauna of the Spiti Shales, Prof. Dr. V. Uhlig, 531 ; 

 Lower Tertiary Mollusca of the Fayum Province of 

 Egypt : Presidential Address, R. Bullen Newton, .i;38 ; 

 Permian Vertebrata of North America, Dr. E. C. Case, 

 c^Gt. ; Gibraltar Cave Exploration, Dr. W. L. H. Duck- 

 worth, 604 



Papua, Expedition into the Western Part of : Royal Geo- 

 graphical Society Lecture, Hon. M. Staniforth Smith, 525 



Parabolic Mirrors, Testing, T, Thorp, 132 



Paralysis, Infantile, 85 



Parasites of Equine Biliary Fever, Prof. Nuttall, 605 



Paris Academy of Sciences : Prize Awards, 327 ; Prizes 



proposed for 1913, 359 

 Parliament, In and Out of : Reminiscences, the Right 



Hon. R. Farquharson, P.C., 546 

 Pathology : Growth Changes in Acromegaly, Prof. A. Keith, 

 50 ; Aids to Pathology, Dr. H. Campbell, 106 ; Ventila- 

 tion of the Lung in Chloroform Narcosis, G. A. Buck- 

 master and J. A. Gardner, 131 ; Mechanism of Troubles 

 of Arterial Circulation leading to Arterio-sclerosis, A. 

 Moutier, 166 

 Petrol Tramcar at Heysham, 493 

 Pets, Domestic : the Boy Fancier, F. T. Barton, 



M.R.C.V.S., 4 

 Pharmacognosy, a Text-book of Botany and, Prof. H. 



Kraemer, Prof. H. G. Greenish, 137 

 Pharmacy : Influence of Trimethylamine Chlorohydrate on 

 the Nutritive Exchanges, MM. Desgrez, P. Regnier, and 

 Moog, 269 

 Pheasants, a Breeding Experiment with, Mrs. Rose Haig 



Thomas, 572 

 Philosophy : Puppets : a Work-a-day Philosophy, G. Forbes, 

 F.R.S., 4; Philosophy, N. M. Butler, President of 

 Columbia University, 209; Bergson, J. Solomon, 209; 

 Natural Philosophy, W. Ostwald, T. Seltzer, Dr. T. P. 

 Nunn, 507 ; Prolegomena zur Naturphilosophie, H. Graf 

 Keyserling, Dr. T. P. Nunn, 507 ; the Principle of Indi- 

 viduality and Value : Gifford Lectures, Dr. B. Bosanquet, 

 583 

 Photochemical Actions and Photo-electrical Phenomena, G. 



Reboul, 573 

 Photoelectric Cells as Photophones, E. Bloch, 573 

 Photograms of the Year 1911-12, H. Snowden Ward and 



others, 347 

 Photography : Utocolor-paper, 50 ; Panoramic-camera for 

 taking the Whole Horizon, S. Nakamura, 87 ; Photo- 

 graphic Impressions on Copper, G, Reboul, 269 ; 

 Angewandte Photographic in Wissenschaft und Technik, 

 K. W. Wolf-Czapek and others, 275 ; the Photographic 

 Annual, 1911-12, 277; the British Journal Photographic 

 Alman.ic and Photographer's Daily Companion, 1912, 

 310; the American Annual of Photography, 377; Opaque 

 Projection Method for Projecting Pictures in Natural 

 Colours, Captain Otto Fulton, 384; Cassell's Cyclopaedia 

 of Photography, 409 

 Photomicrography, Instantaneous Exposure in, Walter 

 Bagshaw, 32 ; Photomicrographic Apparatus on Geo- 

 metric Slide Principle, J. E. Barnard, 165 ; Photomicro- 

 graphy of the Electrical Reactions of the Heart, F. S. 

 Scales, 369 

 Phthalylhydrazides, Preparation of Measurable Crystals of, 



Messrs. Chattaway and Wiinsch, 458 

 Physical Development of Boys at Manchester Grammar 



School, Dr. A. A. Mumford, 132 

 Physical Education, National League for, 227 

 Physical Society : Exhibition, 259 

 Physics : 

 General : a General Relation between the Physical Pro- 

 perties of Bodies : Applications, G. T. Gazarian, 98, 

 201 ; Smithsonian Report, T. T. Baker and others, 162 ; 

 Mathematical and Physical Papers, vol. vi.. Voltaic 

 Theory, Radio-activity, Electrons, Navigation and 

 Tides, Miscellaneous, the Right Hon. Sir William 

 Thomson, Baron Kelvin, O.M., P.C, G.C.V.O., 

 arranged and revised by Sir Joseph Larmor, Sec. R.S., 

 M.P., 543; General TexUbooks : General Physics for 

 Students : a Text-book on the Fundamental Properties 

 of Matter, E. Edser, 3 ; a Handbook of Physics and 

 Chemistry, H. E. Corbin and A. M. Stewart, 107 ; a 

 Text-book of the Principles of Physics, Dr. A. Daniell, 

 510; Principles of Physics: Designed for Use as a 

 Text-book of General Physics, Prof. W. F. Magie, 510; 

 a Text-book of Physics, Prof. L. B. Spinney, 510 

 Special : Psychrometrical Formula, E. F. J. Love, G. 

 Smeal, 33 ; Experimental Investigation of Gibbs's 

 Thermodynamic Theory of Interfacial Concentration for 

 an Air-water Interface, Prof. F. G. Donnan and Dr. 

 J. T. Barker, 97 ; Electron Theory of Metals, N. Bohr, 

 200 ; the Theory of the Quanta, H. Poincar^, 268 ; 

 Mayer's Papers on the Conservation of Energy, 361 ; 

 Propagation of Waves through a Stratified Medium 



