March io, 1921] 



NATURE 



63 



of some transpositions in the phenyldimethylglycol 

 series. — L. Gaucher and G. RoUin ; A new calcium 

 salt. — D. Florentin and H. Vandenberghe : A criticism 

 of the methods of estimating small quantities of 

 carbon monoxide in air- and flue-gases. A comparison 

 of the iodine pentoxide and blood methods, the latter 

 being preferred. — A. Romieux : The evolution of terres- 

 trial dynamism. — E. Le Danois : Fishing maps. An 

 account of maps prepared for the Office scientifique 

 des peches. — A. Paillot : The mechanism of humoral 

 immunity in insects. — F. Pickard and T. Pagliano : 

 The biology of Haltica ampelofhaga. — L. Besson : 

 The influence of temperature on the number of 

 deaths through infantile diarrhoea in Paris. 



Books Received. 



Germination in its Electrical Aspect : A Consecu- 

 tive Account of the Electro-Physiological Processes 

 Concerned in Evolution. By A. E. Baines. Pp. xxi+ 

 185. (London : G. Routledge and Sons, Ltd. ; New 

 York : E. P. Dutton and Co.) i25. 6d. net. 



The Physiology of Protein Metabolism. By Prof. 

 E. P. Cathcart. (Monographs on Biochemistry.^ 

 New edition. Pp. viii+176. (London: Longmans, 

 Green and Co.) 125. 6d. net. 



Six Papers by Lord Lister. With a short Bio- 

 graphy and Explanatory Notes by Sir Rickman J. 

 Godlee. (Medical Classics Series.) Pp. vii+i84+ 

 iv plates. (London : J. Bale, Sons and Danielsson, 

 Ltd.) los. net. 



^ The Practical Electrician's Pocket Book for 192 1. 

 Edited by H. T. Crewe. Pp. lxxii+522. (London : 

 S. Rentell and Co., Ltd.) 35. net. 



Le Mouvement Biologique en Europe. By Georges 

 Bohn. Pp. 144. (Paris : A. Colin.) 4 francs. 



Annals of the South African Museum. Vol. xviii., 

 part I. Pp. 180+2 plates. (Cape Town; London: 

 Adlard and Son and West Newman, Ltd.) 205. 



Morphologie und Biologie der Strahlenpilze (Actino- 

 myceten). By Prof. R. Lieske. Pp. ix+292+4 Tafel. 

 (Leipzig- : Gebriider Borntraeger.) 108 marks. 



Chemistry. By G. H. J. Adlam. (Science for All 

 Series.) Pp. x+238. (London : J. Murray.) 35. 6d. 

 net. 



Notes on a Cellar-Book. By G. Saintsbury. New- 

 edition. Pp. xxxi+228. (London : Macmillan and 

 Co., Ltd.) ys. 6d. net. 



Wireless Telegraphy : With Special Reference to 

 the Quenched-Spark System. By B. Leggett. (The 

 D.-U. Technical Series.) Pp. xv+485. (London : 

 Chapman and Hall, Ltd.) 305. net. 



The Principles of Politics : An Introduction to the 

 Study of the Evolution of Political Ideas. Bv Prof. 

 A. R. Lord. Pp. 308. (Oxford : Clarendon Press.) 

 8s. 6d. net. 



An Elementary Text-Book of Zoology for Indian 

 Students. By Prof. B. L. Bhatia. Adapted from 

 "An Elementary Course of Practical Zoology," by 

 Prof. T. J. Parker and Prof. W. N. Parker. Pp. 

 xii+721. (London : Macmillan and Co., Ltd.) 21^. 

 net. 



Report of the Proceedings of the Third Entomo- 

 logical Meeting held at Pusa on the 3rd to 15th 

 February, 1919. Edited by T. Bainbridge Fletcher. 

 Vol. i. Pp. xii+417+69 plates. Vol. ii. Pp. yi+ 

 418-835+70-129 plates. Vol. iii. Pp. vi+836-ii37+ 

 130-182 plates. (Calcutta : Government Printing 

 Office.) 17.8 rupees for 3 vols. 



Pre-Kensington History of the Royal College of 

 Science and the University Problem. An Address 

 delivered before the Old Students' Association of the 

 Royal College of Science, London, September, 1920, 



NO. 2680, VOL. 107] 



by Prof. H. E. Armstrong. Pp. 23. (London : 

 Lamley and Co.) 2s. 6d. 



The Lands of Silence : A History of Arctic and 

 Antarctic Exploration. By Sir Clements R. Mark- 

 ham. Pp. xii+539. (Cambridge • At the University 

 Press.) 455. net. 



Kincardineshire. By the late G. H. Kinnear. Pp. 

 xi+i22. (Cambridge: At the University Press.) 

 45. 6d. net. 



The Mechanical Production of Cold. By Sir J. A. 

 Ewing. Second edition. Pp. x+204. (Cambridge : 

 At the University Press.) 255. net. 



The Resources of the Sea. By Dr. W. C. 

 Mcintosh. Second edition. Pp. xvi+352, (Cam- 

 bridge : At the University Press.) 35s. net. 



Diary of Societies. 



THURSDAY, Mabch 10. 



iNSTiiriE OF Metals (Annual General Meeting) (at Institution of 

 Mechanical Engineers}, at 10.30. — H. Moore, S. Beokinsale, and 

 Clarice £. Mallinson : The Season Cracking of Brass and Other 

 Copper Alloys. — Dr. J. L. Haughton : The Constitution of the 

 Alloys of Copper with Tin, Parts III. and IV. 



BoTAL Institution of Great Bbitain, at 3. — Dr. G. C. Simpson : 

 The Meteorology of the Antarctic. 



RoiAi, Society, at 4.30. — Sir Joseph Larmor : Electro-crystal- 

 line Properties as Conditioned by Atomic Lattices. — Lord 

 Rayleigh : The Colour of the Light from the Night Sky. — 

 Prof. A. S. Eddington : A Generalisation of Weyl's Theory of 

 the Electromagnetic and Gravitational Fields. — Prof. T. K. 

 Merton : Spectrophotometry in the Visible and Ultra-violet 

 Spectrum. — Prof. W. A. Bone : Researches upon Brown Coals 

 and Lignites. — Prof. H. N. Russell : A Superior Limit to the 

 Age of the Earth's Crust. — H. Ohshima : Reversal of Asymmetry 

 in the Plutei of Echinus miliaris. With a Note by Prof. E. W. 

 MacBride. 



London Matheuaticai, Society (at Royal Astronomical Society), 

 at 5. — J. Brill : Note on the Electrodynamic Equations. — T. W. 

 Chaundy : A Method for the Solution of Certain Linear Partial 

 Differential Equations. — C. W. Gilham : An Extension of Two 

 Theorems on Jacobians. — G. H. Hardy and J. E. Littlewood : 

 (1) The Approximate Functional Equation in the Theory of 

 Riemann's Zeta-fnnction. (2) Summation <»f a Certain Multiple 

 Series. — S. Pollard : A New Condition for Cauchy's Theorem. — 

 E. G. C. Poole : Certain Classes of Matthieu Functions. 



Royal College of Physicians of London, at 5. — Dr. A. Whitfield : 

 Some Points in the Etiology of Skin Diseases (Lumleian Lectures). 



Royal Society of Medicine '(Balneology and Climatology Section), 

 at 5.30. — Discussion : The Place of Baths and Health Resorts in 

 Gynaecology. 



iNSTiTUxroN OF ELECTRICAL ENGINEERS (at Institution of Civil 

 Engineers), at 6. — Prof. E. Wilson: Feebly Magnetic Materials: 

 Practical Applications. 



Optical Society (at Imperial College of Science), at 7.30. — Prof. 

 H. F. Newall : The Story of a New Star (Lecture).— T. P. Con- 

 nolly : Note on a Handy Form of Measuring Microscope. 



Royal Society of Medicine (Neurology and Ophthalmology Sec- 

 tions, Joint Meeting), at 8.— Dr. G. Holmes, L. Paton, and 

 Others : Ocular Palsies. 



Society of Antiqitahies, at 8.30. 



FRIDAY, March 11. 



Association of Economic Biologists (in Botanical Lecture Theatre, 

 the Imperial College of Science), at 2.30. — Exhibits and Short 

 Communications. — Dr. J. Davidson : The Cells of Plant Tissues 

 in Relation to Cell-sap as the Food of Aphids.— E. R. Speyer : 

 Ceylon Scolytid Beetles : their Bionomics and Relation to 

 Ambrosia Fungi and Problems of Plant Physiology. 



Royal Astronomical Society, at 5. — W. H. Wright : Ocourrence of 

 Enhanced Lines of Nitrogen in Spectra of Novae. Second Note. — 

 W. J. Luyten : Visual and Photographic Light-curve of V18 = RZ 

 Cephei.— Adml. Sir A. M. Field : The Solar Eclipse Expedition, 

 1922.— A. S. Williams : A New Variable Star in Perseus. — J. 

 Halm : The Relations between the Masses, Mean Densities, and 

 Luminosities of the Stars. — J. Halm : The Relation between the 

 Velocities of the Stars and their Masses.— Rev. H. E. Macklin : 

 The Clusters h and x Persei. — Rev. J. Rowland : Note on the 

 Magnitude Curves in Mr. Macklin's Paper. — R. T. Cullen : Note 

 on the Travelling Wire Micrometer of the Greenwich Transit- 

 circle. 



Physical Society of London (at Imperial College of Science), 

 at 5. — Prof. A. A. Michelson : Some Recent Applications of Inter- 

 ference Methods (Sixth Guthrie Lecture). 



Royal Society of Medicine (Clinical Section), at 5.30. 



Institution of Electrical Engineers (Students' Meeting) (at 

 King's College), at 6.30. — J. A. Broughall : Some Recent Develop- 

 ments in Converting Machinery for Small Substations. 



Royal Society of Medicine (Neurology and Ophthalmology Sec- 

 tions, Joint Meeting), at 8.30.— Dr. G. Holmes, L. Paton, and 

 Others : Ocular Palsies. 



Royal Institution of Great Britain, at 9. — Dr. J. Freeman : 

 Medical Idiosyncrasies. 



