FEBRUARY 19, 1914| 
NATURE 
795 
A deep-sea hydraulic engine. This engine is for 
developing power in depths from 200 fathoms down- 
wards, for the purpose of boring into the deep-sea 
deposits. The water at the great pressure prevailing 
is the working substance, and after actuating the 
boring engine, is discharged into steel bottles which 
are coupled to the engine by high pressure tubing. 
The power available is very considerable. A_ full 
description of the entire machine, and of the methods 
of lowering, controlling, and raising it, were given, 
and working drawings were shown. 
CaLcuTta. 
Asiatic Society of Bengal, January 7.—Gouripati 
Chatterji: A demonstration apparatus for determining 
Young’s modulus.’ An optical lever method is de- 
scribed, simplified so that measurements of the 
modulus can be made to 5 per cent. in about ten 
minutes for lecture demonstration purposes.—M. S. 
Ramaswami: A new species of Diospyros from the 
Tinnevelly Hills. A description of a hitherto un- 
described Indian species of the genus Diospyros is 
presented._-_M. S. Ramaswami; Studies on the leaf 
structure of Zoysia pungens, Willd. A detailed dis- 
cussion of the structural adaptations, noticeable in the 
leaf of the maritime sandgrass Zoysia pungens, Willd., 
due to its peculiar habitat—J. Coggin Brown: 
Grooved stone hammers from Assam and the distribu- 
tion of similar forms in eastern Asia. An account of 
certain hammer stones with well-marked grooves or 
belts, from the Tezpur district, Assam. Such forms 
are of the greatest rarity among the numerous Neo- 
lithic. stone implements in which certain parts of the 
Indian Empire abound. Grooved stone hammers only 
occur sporadically in eastern Asia, and the short list 
of recorded instances is given for comparison. On 
the other hand, they abound in the North American 
culture area, and are generally distributed throughout 
the United States. The subject is of some importance 
for the additional light it throws on the relation of 
the prehistoric archzological types of the eastern 
Asian and North American culture areas. It is con- 
cluded that there is no evidence to prove that the 
stone axe did not revolve as an independent unit in 
the latter area—H. H. Mann and S. R. Paranipye : 
Intermittent springs at Rajapur in the Bombay Presi- 
dency. These springs flow at very irregular inter- 
vals, generally for a month or two at a time, and 
are held in great veneration in western India. In this 
paper they are fully described and figured, their tradi- 
tional history and the folklore connected with them 
are set forth, and partial analyses, showing that the 
water does not differ materially in composition from 
that of other springs in the Deccan Trap area, are 
given. . 
BOOKS RECEIVED. 
Les Récents Progrés du Systéme Métrique. By 
C. E. Guillaume. Pp. 118. (Paris: Gauthier- 
Villars.) 5 francs. 
Foods and Household Management: By H. Kinne 
and A. M. Cooley. Pp. xv+4o1. (London: Mac- 
millan and Co., Ltd.) 5s. net. 
A History of Education in Modern Times. By Prof. 
P. Graves. Pp. xv+410. (London: Macmillan 
and Co., Ltd.) 5s. net. 
The Continents and their People. South America. 
By J. F. and A. H. Chamberlain. Pp. viii+ 189. 
(London: Macmillan and Co., Ltd.) 3s. 
Die Siisswasser-Flora Deutschlands, Oesterreichs 
und der Schweiz. Edited by Prof. A. Pascher. 
WOL.2372.. VOLs' 92" 
Heft. i. Flagellate 1. By E. Lemmermann, Pp. 
iv+138. (Jena: G, Fischer.) 3.50 marks. 
Elementary Commercial Geography. By Dr. H.R. 
Mill. Revised by F. Allen. Pp. xiit+215. (Cam- 
bridge University Press.) 1s. 6d. net. 
Konstitution und Vererbung in ihren Beziehungen 
zur Pathologie. By Prof. F. Martius. Pp. viii+258. 
(Berlin: J. Springer.) 12 marks. 
Handbuch der vergleichenden Physiologie. Edited 
by H. Winterstein. 40 Lief. (Jena: G. Fischer.) 5 
. marks. 
Commission Polaire Internationale. Procés-Verbal 
de la Session Tenue & Rome en 1913. Pp. 293. 
(Bruxelles : Hayez.) 
Handbuch fiir biologische Uebungen. Zoologischer 
Teil. By Prof. P. Réseler and H. Lamprecht. Pp. 
xii+574. (Berlin: J. Springer.) 27 marks. 
Catalogue of the Ungulate Mammals in the British 
Museum (Natural History). Vol. ii. By R. Lydekker, 
assisted by G. Blaine. Pp. xvit+295. (London: 
British Museum (Natural History); Longmans and 
Co.) 7s. 6d. 
The Anthropology of the Greeks. By E. E. Sikes. 
Pp. xi+112. (London: D. Nutt.) 5s. net. 
Physical Chemistry and Scientific Thought. By 
Prof. W. C. McC. Lewis. Pp. 20. (Liverpool Uni- 
versity Press.) 1s. net. 
Smithsonian Institution. U.S. National Museum. 
Bulletin 71. A Monograph of the Foraminifera of 
the North Pacific Ocean. By J. A. Cushman. Part iii. 
Lagenide. Pp. ix+125+47 plates. (Washington: 
Government Printing Office.) 
Report of the Secretary of the Smithsonian Insti- 
tution for the Year Ending June 30, 1913. Pp. 119. 
(Washington : Government Printing Office.) 
Annual Report of the Director of the Weather 
Bureau for the Year tgi1o. Part iii. Pp. 268. 
(Manila: Bureau of Printing.) 
Intermediate Mechanics for Indian Students. By 
F. C. Turner and Prof. J. M. Bose. Pp. xii+332. 
(London: Longmans and Co.) 4s. 6d. 
Monistische Bausteine. By E. Haeckel. Edited by 
W. Breitenbach. Erstes Heft. Pp. viit+224. (Brack- 
wede i.W.: Dr. W. Breitenbach.) 3 marks. 
The Socialized Conscience. By Prof. J. H. Coffin. 
Pp. viiit+247. (Baltimore: Warwick and York, Inc.) 
1.25 dollars. 
Die Europaeischen Schlangen. By Dr. F. Stein- 
heil. Heft.4. 5 plates. (Jena: G. Fischer.) 3 
marks. 
Die Kultur der Gegenwart: ihre Entwicklung und 
ihre Ziele. Teil iii. Abt. iv. Band 4, Abstammungs- 
lehre, Systematik, Palaontologie, Biogeographie.. By R. 
Hertwig and R. v. Wettstein. Pp. ix+620. (Leipzig 
und Berlin: B. G. Teubner.) 22 marks. 
The People’s Books :—Wild Flowers. By M. Skene. 
Pp. 92. Applications of Electricity for Non-Technical 
Readers. By A. Ogilvie. Pp. 93. (London and 
Edinburgh: T. C. and E. C. ey 6d. net each. 
Ueber die Konstitution und Konfiguration von Ver- 
bindungen hdherer Ordnung. By Prof. A. Werner. 
Pp. 21. (Berlin: J. Springer.) 1.20 marks. 
The Elements of Qualitative Chemical Analysis. By 
Prof, J. Stieglitz. Vol. i. Parts 1 and 2. Pp. xi+ 
312. Vol. ii. Parts 3 and 4. Pp. viii+153. (Lon- 
don: G. Bell and Sons, Ltd.) 6s, net each. 
A Text-Book on Spherical Trigonometry. By Prof. 
R. E. Moritz. Pp. vi+67. (New York: J. Wiley 
and Sons, Inc.; London: Chapman and Hall, Ltd.) 
4s. 6d. net. 
