164 
NATURE 
[OcToBER 26, 1916 
BOOKS RECEIVED. 
Studies of Inheritance in: Guinea-Pigs and Rats. 
y W. E, Castle and S. Wright. Pp. iv+192+plates 
(Washington : Carnegie Institution.) 
Plant Succession. By Prof. F. E. Clements. Pp. 
xiii+512. (Washington: Carnegie Institution.) 
The Jukes in 1915. ‘By A, H. Easabrook. Pp. vii+ 
85. (Washington: Carnegie Institution.) 
American Fossil Cycads. By G,.R. Wieland. 
Vol. ii., Taxonomy. Pp. vii+277. (Washington: 
Carnegie Institution.) 
The Vulgate Version of the Arthurian Romances. 
Edited from Manuscripts in the British Museum. By 
H. O. Sommer. Index of Names and Places to 
vols. i—vii. Pp. 85. (Washington: Carnegie Insti- 
tution.) 
Fecundity versus Civilization. By A. More. Pp. 
52. (London: G. Allen and Unwin, Ltd.) 6d. net. 
Air-Screws.. By M. A. S, Riach. Pp. ‘viii+128. 
(London: Crosby Lockwood and Son.) tos. 6d. net. 
Eclipse or Empire? By H. B. Gray and S. Turner, 
B 
7. 
Pp. x+316. (London: Nisbet and Co., Ltd.) + 2s. 
net. ; 
Economics in the Light of War. By Prof. R. A. 
Lehfeldt. Pp. 56. (Johannesburg: South African 
School of Mines and Technology; London: W. Wes- 
ley and Son.) 1s. , 
_ Annals of the South African Museum. 
part iv. (London: Adlard and Son.) 25s. 
Form and Function: a Contribution to the History 
of Animal Morphology. By E. S. Russell. Pp. ix+ 
383. (London: J. Mercays) Ios. 6d. net. 
Annual Report of the Board of Regents of the 
Smithsonian Institution for the Year ending June 30, 
1915. Pp. xii+544. (Washington: Government 
Printing Office.) 
The Indo-Aryan Races: a Study of the Origin of 
Indo-Aryan People and Institutions. By Ramaprasad 
Chanda. Part i. Pp. xiii+274. 
The ‘Varendra Research Society.) 
The Cambridge Pocket Diary, 1916-17. Pp. xv+ 
265. (Cambridge: At the University Press.) 1s. net. 
Robert of Chester’s Latin Translation of the Algebra 
of Al-Khowarizma. With an Introduction, Critical 
Notes, and an English Version, by L. C. Karpinski. 
Pp. vii+164. (New York: The Macmillan Company ; 
London: Macmillan and Co., Ltd.) 2 dollars. 
Memoirs of the Boston Society of Natural History. 
Vol. viii., No. 2. Monographs on the Natural History 
of New England:—The Whalebone Whales of New 
England. By G. M. Allen. Pp. 107-322. (Boston; 
Mass: The Society.) 
The Origin of Finger-Printing. By Sir W. J. 
Herschel. Pp. 41. (Oxford: At the University Press, 
H. Milford.) Paper covers, 1s. net. 
A Portfolio of Reproductions of Finger Prints. 
pesiadels At the University Press, H. Milford.) Not 
sold, . 
William Oughtred: a Great Seventeenth-century 
Teacher of Mathematics. By Prof. F. Cajori. Pp. 
vit+1oo. (Chicago and London: Open Court Com- 
pany.) 4s. net. 
Vol. v., 
DIARY OF SOCIETIES. 
FRIDAY, OctoBer 27. 
Prvsicar Sociery, at 5.—The Determination of the Saturation Values for 
Magnetism of Ferromagnetic Metals, Componnds, and Alloys by means of 
the Kerr Effect : Dr. S. G. Rarker.—The Influence of the Time Element 
on the Resistance ofa Solid Rectifying Contact : D. Owen.—Diffusion in 
Liquids.: B. W. Clack. 
TUESDAY, Ocroesr 31. 
Rovat Antruroro.ocicaL INnstiruTr, at.5.—The Gurkhas and their 
Country : Aubyn<Trevor-Battye. 
NO. 2452, VOL. 98] 
(Rajshahi, Bengal : 
WEDNESDAY, NovemBer 1. 
Socrery or Pustic ANALysrs, at 8.—Quantitative Microscopy: T.’ E. 
Wallis.—Formula for Converting Zeiss Butyro-Refractometer Readings 
into Refractive Indices: C. C. Roberts.—Criticism of Vaubel’s Bromine 
Values : Cecil Revis and H. R. Burnett. 
ENTOMOLOGICAL Society, at 8. 
THURSDAY, NoveMBER 2. 
Rovat Society, at 4.30.—Probable Papers: Waves in an Elastic Plate: 
Prof. H. Lamb.—(x) Multiple Integrals ; (2) The Order of Magnitude of 
the Coefficients of a Fourier Series : Prof. W. H. Young.—A Determina- 
tion of the Heat of Vaporisation of Water at 100° C. and x Atmosphere 
Pressure in Terms of the Mean Calorie: T. C. Sutton.—The Mechanical. 
Relations of the Energy of Magnetisation: G. H. Livens. 
MATHEMATICAL Society, at 5.30.—Annual General Meeting.—Address of 
President : The Fourier Harmonic Analysis ; its Practical Scope 
Retirin, 
and its Limiukiont® Sir Joseph Larmor. ” 
CuemicaL Soctrety, at 8.—Overvoltage Tables. Part IV. The .Theories 
of Overvoltage and Passivity : E. Newbery.—Studies of the Carbonates, 
Part 11. Hydrolysis of Sodium Carbonate and Bicarbonate, and the 
Ionisation Constants of Carbonic Acid : C. A. Seyler and P. V. Lloyd.— 
The Synthesis of Hydroxyquercetin : M. Nierenstein.—(1) The Reaction 
between Methyl Iodide and some Metallic Cyanides ; (2) Some ions 
produced by Mercuric Iodide; E. G. J. Hartley.—The Dual Theory of — 
Acid Catalysis. A Comparison of the Activities of Certain Strong Acids: 
H. M. Dawson and T. W. Crann. 
FRIDAY, NoveMBER 3. " 
InstituTION OF MECHANICAL ENGINEERS, at 6.—Thomas Hawksley 
Lecture ; The Gas Engineer of the Last Century: H. E. Jones. 
SATURDAY, Novemner 4. 4 
GeoLocists' AssoctaTion, at 3-—Followed by Anvual Conversazione. 
MONDAY, Novemper 6. 
Society oF ENGINEERS, at 5.30.—Heating and’ Ventilating Private 
Dwelling-Houses: C. T. A. Hanssen. » 
CONTENTS. 
PAGE 
« Meteoritics”’ 72) ..) ae oaars ee “ay of ae eee 
Escape of Electrons from Hot Bodies ...... 146 
Physics ie Dam omnes a «ok opp ode 
Birda, and the Poets ore cee Arey ey 
Our Bookshelf. . 5... 3 tesa." ce: Sele td ean 
Letters to the Editor:— } 
Scarcity of Wasps.—Right Hon. Sir Herbert 
Maxwell, Bart., F.R.S.; Alfred O. Walker; 
W. F. Denning; Richard F. Burton; S. , 
Priest; C. Carus-Wilson ...... WGA ci 
Glacial Nomenclature and Scott's Antarctic Expedi- ; 
tion.—Dr. Griffith Taylor; The Reviewer . . 149 
Annealing Glass. (//ustrated.) By Prof. C. V. Boys, 
FUR. S20. cose od leule elena s dae 
University and Higher Technical Instruction in 
Franct >" ears geen Pas - te ee er ae 4): 
Public Schools and Others. By W.D.E. ..,. 151 
Notes ... arene 
LOS hapten tans PAOUPR TE Gecko) 
Our Astronomical Column :— 
Two Large-Fireballs = i. 5 100) os se) ety ole) oe 
Encke'sqComen suns eens destin Sale ul Sean nanan 
Internal Motion in Spiral Nebule. . ....... 456 
The Association of Technical Institutions. . . . 156 
Recent Work on Tsetse-flies. By G, H.C. . . 157 
Zoology at the British Association. By Dr. J. H. 
is. sls been 
The British Association at Newcastle :— 
Section G—Engineering —Opening Address (Abridged) 
by Gerald Stoney, B.A.I. (Dub.), F.R.S., ° 
M,Inst.C.E., President of the Section. . . . 159 _ 
University and Educational Intelligence . .... 161 
Societies and Academies. ............ 162 
Mooks: Received © 3% .. ee eee Fe a eo Om 
Diary of Societies ........ 0 atten St eee 164 
Editorial and Publishing Offices: 
MACMILLAN & CO., Lrtp., 
ST. MARTIN’S STREET, LONDON, W.C. 
Advertisements and business letters to be addressed to the 
‘ Publishers. 
Editorial Communications to the Editor. 
Telegraphic Address: Puusis, LONDON. 
Telephone Number: Gerrarp 8830. 
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