NATURE 



[June 24, 1922 



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Cambridge University Press 







= A Little Book on Water Supply. 



= By WILLIAM GARNETT, M.A., D.C.L. With 53 text- 



= figures. Demy 8vo. 6s 6d net. 



S "Mr Garnett deals lucidly with almost every aspect of water supply, 



= and Londoners will find his explanation of the system by which water 



= is distributed throughout London particularly interesting. . . . His 



= book is worthy of the importance of Us subject." — I'he Morning Post. 



I A Treatise on the Analysis of 



S OpeCira. Based on an essay to which the Adams Prize 



= was awarded in 1921. By W. M, HICKS, Sc.D., F.R.S. 



^ Royal 8vo. 35s net. 



= " The object of the present treatise is to present, as a more or less 



= connected whole, the knowledge already obtamed, and thus to provide 



S an introduction to the subject for those desirous of entering on its 



^ study, as well as a book of reference for data for those working in 



^ it." — From the Introduction. 



I Supplement to Notes on Qualita- 



= tlVe Analysis, concise and Explanatory. By 



= H. J. H. FENTON, Sc.D., F.R.S. Crown 8vo. 3s 6d net. 



~ The author gives in this Supplement a concise list of the reactions of 



^ the rarer elements, selecting those elements which can be identified by 



— chemical tests alone, and has included in addition an account of the re- 



—, actions and properties of a considerable number of organic and inorganic 



S compounds not already described in the earlier part of the book. 



I The Cambridge Bulletin, ncxlu, 



S May 1922, giving particulars of the recent and forthcoming publications 



S of the University Press, is now ready and will be sent free on application. 



The Journal of Agricultural 



Science. Edited by R. H. Biffen, F.R.S., Sir A. D. Hai.:., 

 F.R.S., F. H. A. Marshall, F.R.S., E. J. Russell, F.R.S., and 

 T. B. Wood, F.R.S. Vol. XIL Part 2. April 1922. 10s net. 



CoNTKNTS. — The chemical composition of animal bodies. (With 

 I Text-figure.) By Alan J. Murkav. — The effect on the percentage 

 composition of the milk of (a) variations in the daily volume and (/;) 

 variations in the nature of the diet. (With 4 Text -figures.) By 

 Alfred D. Taylor and William Husband.— The citric solubility 

 of mineral phosphates. (With 8 Diagrams.) By J. F. TocHtR. — 

 Comparative determinations of the digestibility and metabolisable energy 

 of green oats and tares, oat and tare hay and oat and tare silage. By 

 Herbert Ernest Woodman. — A note on the classification of soils on 

 the basis of mechanical analyses. (With 11 Text-figures.) By C. L. 

 Whittles. — The influence of size and character of seed on the yield of 

 potatoes. (With 4 Text-figures.) By Redcliffe N. Salaman. — An 

 investigation upon certain metrical attributes of wheat plants. By F. L. 

 Englbdow and J. P. SheltOn. 



Journal of Ecology. Edited for the British 



Ecological Society by A. G. Tanslky. Vol. X. No. i. May 

 1922. 15s net. 



Contents. — The Concept of Habitat. By R. H. Yai'F.— The 

 Dovey.Salt Marshes in 1921. By R. H. Yapp. (With 3 figures in the 

 text.) — The Ecology of the Gorse (Ulcx) with Special Reference to the 

 Growth-Forms on Hindhead Common. By E. G. Skipi'ER, M.Sc. 

 (With plate I and 9 figures in the text.) — Changes in the Coast Vege- 

 tation near Berrow, Somerset. By H. Stuakt Thompson. (With 

 Map and Plate II.)— The Distribution and Origin of Salix in South 

 Africa. By Joseph Burtt Daw. (With 6 figures in the text.)— The 

 Vegetation of West Greenland. By R. E. Holttum. (With Plates 

 III-V.)— A Spitsbergen Salt Marsh : With Observations on the Ecologi- 

 cal Phenomena Attendant on the Emergence of Land from the Sea By 

 John Walton, B.A. (With Plates VT, VII, and 6 figures in the text.) 



I 5JI Fetter Lane, London, E.C.4 : C. F. Clay, Manager | 



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