XXxXil 
ciate of ‘the, 414; Observatory, Astronomical Observa- 
tions at the, G. Bigourdan, 223 
Parks and Park Engineering, Prof. W. T. Lyle, 486 
Pathometry, a priori, An Application of the Theory of 
Probabilities to the Study of, Sir R. Ross and Miss 
H. P. Hudson, 483 
Peat, Manufacture of Manure from, Prof. F. E. Weiss, 283 
Pelobates, Development of the Frog, G. A. Belogolovy, 54 
Pelodrilus africanus, E. J. Goddard, 44 
Pennines, Northern, The, Dr. A. Wilmore, 138 
Pennsylvania Hospital, University of, Recommendation of 
a Grant to, for the Treatment of Cancerous and other 
Ailments, 82 
Pentoses, Total Destruction of, in the Course of Alcoholic 
Fermentation, H. Pellet, 83 
Peripheral Nerve-lesions, Profs. Sala and Verga, 275 
Permeability : New Determinations of, S. C. Brooks, 243; 
Selective, Prof. A. J. Brown and F. Tinker, 242 
Petrograd, Higher Institute of Medicine for Women at, 
Gift for Scholarships at the, 402 
Petroleum: Research, Munitions, Sir B. Redwood appointed 
Director of, 475; Supplies Branch of the Ministry of 
Munitions, Establishment of a, 475 
Phagocyte, The Réle of the, in Cerebro-spinal Meningitis, 
C. Shearer and H. W. Crowe, 242 
Pharmaceutical Research Fellowship, Endowment of a, by 
Mr. Ransom, 295 
Pheasant-Crosses, Colour and Pattern Transference in, Miss 
R. Haig Thomas, 480 
Phenol in Crude Tar Phenols, Estimation of, R. Masse and 
H. Leroux, 183 f 
Philadelphia Museum, Gift of Roman Mosaics to, by Mrs. 
D. Parrish, 74 
Philippine Islands, The Petrography of the, I. P. Iddings 
and E. W. Morley, 163 
Philosophy, 426 
Pheenicians and Megalithic Culture, Prof. G. Elliot Smith, 
134 
Phosphates, The World’s Supply of, Prof. J. W. Gregory, 
301 
Phosphorescent : Centipede, A, Capt. W. B. Gourlay, 233; 
Centipedes, S. Priest, 319 
Phosphorus : The Geologic Réle of, E. Blackwelder, 83 ; and 
Sulphur, The Influence of, on the Mechanical Properties 
of Steel, Prof. H. C. H. Carpenter, 410 
Photographic : Illustration, C. M. Hutchinson, 256; Record- 
ing, 445 
“Photography of Coloured Objects,” New edition, 77 
Photometry, Extra-focal, R. H. Baker and E. E. Cummings, 
379 
Photo-micrography, Plain, The Practical Principles of, G. 
West, 47 
Photosynthesis, The Mechanism of, A. A. Richter and E. M. 
Kollegorsky, 39 
Physics: 147; Practical, A Manual of, H. E. Hadley, 127; 
A Text-Book of, Dr. H. S. Allen and H. Moore, 106; 
Three Text-Books of, 127 
Physiological Chemistry, Prof. A. P. Mathews, 167 
Physiology at the British Association, 178 
Pigeons, Sex Control and Known Correlations in, Dr. O. 
Riddle, 480 
Pine Blister Disease, 454 
Pituitary : Extract, Action of, on the Secretion of Cerebro- 
spinal Fluid, Prof. Halliburton, 178; Gland, Isolation 
from an Extract of the, Prof. T. B, Robertson, 435 
Plane Electric Waves, Scattering of, by Spheres, Dr. T. J. 
I’a. Bromwich, 282 
Planets, Minor, Observations of, in France, 41 
Plant: Culture, The Principles of, the late E. S. Goff, 
Revised by J. G. Moore and L. R. Jones, Eighth 
edition, 245; Disease, Prof. Potter, 237; Diseases, 500; 
Distribution, Early Chapters in, Prof. G. S. Boulger, 
222; Physiology and Teratology, 485; Some Recent 
Researches in, Dr. W. R._G. Adkins, 485; Teratology, 
The Principles of, W. C. Worsdell, vol. i., 485 
Plants: in Health and Disease, Prof. F. E. Weiss, Dr. 
A. D. Imms, and W. Robinson, 330; in Health and 
Disease,” Dr. A. D. Imms, 428; Natural Colour in, 
Preservation of, Dr. A. B. Rendle, 191 
Pees Vessels, Vaporisation of, Burgess and Waltenberg, 
9 
Index 
Nature, — 5 
March 15, 19t7 
Pliohippus lullianus, E, L. Troxell, 395 ia 
Plumage, Henny, Inheritance of, in Cocks, Prof. Punnett 
and Capt. P. G. Bailey, 262 
Pneumonia among the South African 
Dr. F. S. Lister, 393 
Point Sets and Cremona Groups, part iii., A. A. Coble, 243 
Polaris, The System of, L. Courvisier, 22 4a 
Polysaccum crassipes, P. A. van der Bij), 44 ‘. 
Pomégnes and Ratonneau, Geology of, J. Repelin, 324 
Poplars of the United States Threatened by the European 
Poplar-canker, 375 
Port Erin, Endowment of an Institute at, by Prof. and 
Herdman, 393 
Portland Cement Industry, The, W. A. Brown, 368 
Portuguese Minerals of Uranium and Zirconium, Spectro- 
graphic Studies of, A. Pereira-Forjaz, 443 . 
Position and Co-ordinates of the Old Observatory in the 
Vincenne, G. Bigourdan, 242 
Post-cestrous Changes in the Non-Pregnant Dog, F. H. 
Marshall and E. T. Halnan, 483 S 
Potable Waters, A New Arrangement for the Rapid Filtra- 
tion of, C. Galaine and C. Houlbert, 443 
Potash: from Kelp, Extraction of, in California, 75; from 
Kelp, Production of, 336; from Wyomingite, Extraction 
of, R. C. Wells, 276 
Potassic Fertilisers, Possible, 252 a 
Potassium: Apparent Disappearance of, from Brines and 
Saline Deposits, W. B. Hicks, 117; Nitrate, Catalytic 
Action of, M. Molliard, 263 a 
Potatoes, Wart Disease of, 435; Order Respecting, 497 
Poulsen Arc, Experiments on a, McLachlan, 158 
Prairie-Dogs, The, N. Hollister, 315 
Prawn, Common, Functions of the 
L. A. Borradaile, 242 Fe 
Pre-Boulder Clay Man, J. Reid Moir, 109 ' 
Precious Stones, Production of, for the Year 1915, Dr. 
G. F. Kunz, 271 " 
Pre-Palzolithic Implements, Discovery of, J. Reid Moir, 314 
“Preparedness”: The American Way, 169 
Mining Communit s, 
Preservatives and other Chemicals in Foods, Prof. O. Folin, 7 
~ 
/ 
Pressure on the Equilibrium Constant of a Reaction in a 
Dilute Solution, Effect of, Prof. W. C. McC. Lewis, 383 
Prize Awards of the Paris Academy for 1916, 380 
Proper Motions by the Blink-Microscope, R. T. A. Innes, 56 
Protoplasm and Gelatine, Similarity in the Behaviour of, — 
W. O. Fenn, 163 ; 
Protozoa: and Soil Bacteria, Dr. T. Goodey, 302; Found 
in Plankton Taken in Danish Seas, Dr. C. 
Ostenfeld, 194 
Prunus, Resistance of, to Crown Gall, Prof. Clayton Smith, 
Fitton; triquetrum, The Gametophyte of, T. Whitelegge, 
283; The Gametophyte of, G. P. Darnell-Smith, 463 
Psychology, Modern, The Bearing of, on Educational Theory 
and Practice, C. M. Meredith, 27 
Public-School : Education, The Reform of, Sir R. Ross, 220; — 
Science Masters, Association of, Forthcoming Annual — 
Meeting of the, 220; Address to, Prof. H. H. Turner, 
400; Work of the, C. L. Bryant, 400 
Public Schools: An Answer, W. D. E., 151; and others, 
151; Science in, 400 
Pump, Exhaust, A New Form of, I, Langmuir, 417 
Purbeck Limestones, Characez in the, C. 
Groves, 481 
Pyorrhoea, Certain Parasites of the Mouth in Cases of, Dr. 
H. Pixell-Goodrich and M. Moseley, 163 
Pythagoras, The School of, Prof. D'Arcy W. Thompson, 165 — 
Quartic Surfaces with Singular Points, Prof. C. M. Jessop, 
367 
Quebec Bridge, The Accident to the, 135 
Queensland, Fish Poisoning and Poisons Employed among 
the Aborigines of, Dr. Hamlyn-Harris and F. Smith, 155 
Radiation, Nocturnal, A. Boutaric, 324 
Radiographic Methods, 207 
Radio-lead, Density of, from Pure Norwegian Cleveite, 
T. W. Richards and C. Wadsworth, 83 
Mouth-parts of the, 
Hansen- | 
Reid and J. — 
