424 
NATURE 
[JANUARY 25, I917 
A construction of the osculating sphere and of the 
radius of torsion at a point of the curve of intersection 
of two given surfaces.—W. H. Young: The conditions 
of convergence of Fourier’s series.—M. Baticle: The 
application of the theory of integral equations to cer- 
tain calculations relating to the stability of construc- 
tions.—J. Repelin: New species of Rhinocerotide of 
the Oligocene of France. The Laugnac deposit dis- 
covered by Vasseur contains the remains of at least 
three new forms of rhinoceros. The best represented 
is the oldest European Teleoceras known. It appears 
towards the end of the Oligocene period in the middle 
of a fauna undoubtedly Oligocene, and may perhaps 
be considered as the direct ancestor of T. aurelianense. 
—J. Georgévitch: The evolutive cycle of Ceratomyxa 
herouardi.—]. Danysz: The causes of anaphylaxy : 
the nature and formation of the antibodies. The anti- 
gens are substances which cannot be directly assimi- 
lated, the antibodies the substances which transform 
the antigens into assimilable products, and which each 
organism can produce specially for each antigen. This 
change can be compared with a digestion, and consists 
of two successive reactions, the formation of a pre- 
cipitate, and the resolution of this precipitate. When, 
after a special preparation, the blood of an animal 
contains a sufficient quantity of this digestive reagent, 
the digestion is effected in the interior of the blood- 
vessels, and the formation of a precipitate under these 
conditions causes the troubles described under the name 
of ‘‘crisis,’’ or anaphylactic shock. The intravascular 
digestion may give rise, in certain cases, to toxic by- 
products.—H, Judet: An attempt to reconstitute losses 
of substance of the long bones resulting from war 
wounds. 
BOOKS RECEIVED. 
Catalogue of the Collection of Skulls and Teeth in 
the Odontological Museum of the University of. Bir- 
mingham. Pp. 64. (Birmingham: Cornish Bros., 
Ltd.) 
British Agriculture: The Nation’s Opportunity. By 
the Hon. E. G. Strutt, L. Scott, and G. H. Roberts, 
and a Preface and Appendix. on the Reclamation of 
Land, by A. D. Hall. Pp. xi+168. (London: J. 
Murray.) 3s. 6d. net. 
MONDAY, Janvary 29. 
Rovat Society oF ARTS, at 4.30.:—Town Fey) and Civic Aare hd 
Prof. A. Beresford Pite. , : 
TUESDAY, JANDARY 50 
Royat InsTiTuTION, at 3.—The Old’ Brain and ae New Brain, er their 
Meaning: Prof. C. S. Sherrington. 
Rovat Society of Arts, at 4.30.—Imperial Industries after the War: 
O. C. Beale. 
WEDNESDAY, Janvary 31. 
Rovat Socrery oF ARTS, at 4.30. —The Work of the Y.M.C.A, in France: — 
Miss Ella C, Sykes. } 
Rovat. SANITARY INSTITUTE, at 4.30.—Discussion : The Physical Welfare 
of Children after Infancy from the National, Social, and Public Health 
Standpoints, to be opened by Dr. W. Leslie Mackenzie. 
THURSDAY, Fesrvary 1. 
Royat Society, at 4.30:—Probaile Papers: An Application of the Theory 
of Probabilities to the Study of a f7io77 Pathometry. Part Il. : Sir Ronald 
Ross and Miss H. P. Hudson.—An Investigation into the Periodicity of 
a 
Measles Epidemics in London from 1703 10 the present day by the © 
Method of the Periodogram: Dr. J. Brownlee.—The Causes responsible 
for the Developmental Progress of the Mammary Glands in the Rabbit 
during the latter part of Pregnancy: Capt. J.. Hammond.—The Post- 
cestrous Changes occurring in the Generative Organs and Mammary — 
Glands of the Non-pregnant Dog: F. H. A. Marshall and E. 1. Halnan, 
Roya. Institution, at 3.—The Mechanism of Chemical Change: Prof. 
F. G. Donnan. 
Cane Society, at 8.—Chromium Phosphate: A. F. Joseph and~ 
W. N. Rae.—The Detection of Traces of Mercury Salts in Toxicological 
Work: K. C. Browning.—‘‘ Stepped” Ignition? R. V. Wheeler.—lhe 
Catalytic Bleaching of Oils, Fats, and Waxes: H. Rai.— 
Derivatives of Mercuric Nitrite: P. C. Ray. a ee of a Derivative 
of the Lowermost Homologue of Thiophene : P. C. Ray andM. L. Dey.— 
The Detergent Action of Soap: S. U. Pickering.—The Occlusion of Iron 
by the Phospho-molybdate recipitate : E. H. Archibald and H. B. 
Keegan. 
MATHEMATICAL Society, at 5.30. 
FRIDAY, Frervary 2. 
Royat InsTITUTION, at 5.30.—T he Supply of Gaseous Energy: Dr. er 
Carpenter. 
SATURDAY, Vesruary 3. 
Geotocists’ AssocraTion, at 3. —President's address: The Study of the. 
Archzan Rocks, with Special Reference to Scotland : G. Barrow. 
CONTENTS. PAGE 
Shakespeare and Precious Stones ....... 405, 
Identification of Stars. oe cee 3. a eee 
An Arabic Algebra. By G «+ +) 406) 
Gur Bookshelf. ...... . oe wie 
Letters to the Editor:— y 
A Plea for a Scientific Quadruple Entente.—Prof, 
Eugenio Rignano 
Stebiltxd in Flight. —Prof, D’ Arcy w. Thompson, } 
c.B + + + + G09, 
An Explosion Effect.-C. Welborne Piper “ae 409 
The Influence of Phosphorus and Sulphur on the 
Mechanical Properties of Steel. By Prof. H.C. H. | 
The Flying Machine from an Engineering Stand- Carpenter. oa ye ee 
point. By F. W. Lanchester. Pp. viiit135. (Lon- | Work of the Government ‘Laboratory |... .. 4Ir 
don : Constable and Co., Ltd.) 4s. 6d. net. The Scarcity of Biicaeas By Prof. Geo. H. i 
Food and Fitness, or Diet in relation to Health. Carpenter BY. eed + be © een 
By Prof. J. Long. Pp. ix+208. (London: Chap- | Notes ... MMC 
man and Hall, Ltd.) ss. net. Our Astronomical. Column :— 
The Problems of Physiological and Pathological ie en Pe pealalneages +) ie 0. Ws ben 
ei of Bi es ar) ae pag ogee The Total Solar Eclipse of 1916, February 3 Paar. 418 
eotp. pene a terete y Vr. UO. von furt'- | Paris Academy of Sciences. Programme of Prizes — 
Translated by Prof. A. J. Smith. Pp. xv+667. (Phil- for..IgtS.. \2. 8.) oak ae dare 
adelphia and London: J. B. Lippincott Co.) 25s. net. Workebop Methods of Optical Testing; . .. 7. 34mg 
The Reality of Psychic Phenomena, Raps, Levita- | Scientific Research in Relation to Industries. By 
tions, etc. By Dr. W. J. Crawford: Pp. vii+246. Dr. C. P. Steinmetz .. Me 
(London: J. M. Watkins.) 4s, 6d. ; University and Educational Intelligence an 
The Lack of Science in Modern Education, with | Societies and Academies. ............ 422 
=e Hints of What Might Be. By Sir Napier Shaw. | Books Received ....... ib es ep ates 424 
Pp. 42 _ (London : Lamley and Co.) fs. net. ren of Societies ea 424 
DIARY OF SOCIETIES. — Editorial and Publishing Offices: 
ANUA 2 
a4 VAL SOcIETy, at 4. we he Dynamics of Revolving Fluid : Lord Ray- MACMILLAN & CO., Lrtp., ‘ 
eigh.—Spectroscopic »servations v +d 7 
gt Speers Cher ee ST. MARTIN'S’ STREET, LONDON, W.C. 
Spherical Iron Shells: Profs. J. W. Nicholson and E, Wilson —The 
Two-dimensional Motion of a Plane Lamina in a Resisting Medium: 
S. Brodetsky. 
FRIDAY, January 26. 
Royat Institution, at —FEpicurean Philosophy: Prof. G. Murray. 
PuysicaAv Socipry, at 5,—A Clock of Precision: C. ©. Rartrum.—The 
Effect of the Water Vapour in the Atmosphere on the Propagation of 
Electromagnetic Waves: Dr. F. Schwers. 
SATURDAY, January 27. 
Rovat InstiruTion,; at 3.—The akes and Mountains of Central Africa: 
A. R. Hinks. 
NO. 2465, VOL. 98] 
Advertisements and business letters to be addressed to the: 
Publishers. 
Editorial Communications to the Editor. 
Telegraphic Address: Puusis, LONDON. ves 
Telephone Number: Grrrarn 8820. 
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