522 SCIENCE PROGRESS 



as well as facts from a textbook of such wide scope, the authors are to be 

 congratulated on the skill with which the compression has been effected, especially 

 in the earlier pages, dealing with biology. The practical work suggested is simple, 

 and should lead the student to think, while the view that the orchards, farms, 

 and gardens of the neighbourhood should be his proper laboratory is worth noting. 



L. B. 



Oil Seeds and Feeding Cakes. Anonymous, with a preface by Wyndham 

 R. DUNSTAN, C.M.G., F.R.S. Imperial Institute Monographs on the War 

 and New British Industries. [Pp. xxiii + 1 1 2.] (London: John Murray, 

 191 5. Price 2s. 6d. net.) 



The present is the first of a series of small volumes dealing with colonial raw 

 materials whose market has been disturbed by the war. The preface makes 

 interesting reading, though one would have liked to hear more about the economic 

 aspect of the proposed changes, especially with regard to cost of production 

 and to the availability of technological knowledge in England. 



The subsequent essays deal with copra, palm kernels, ground nuts, sesame 

 seed, mowra seed, and the comparative values of the new feeding cakes. They 

 bring together much useful information, though they lack critical value from 

 the investigators' view-point through being unsigned. The manufacturer would 

 prefer that more prominence should be given to the economic problems ; it is 

 remarkable that Germany should have taken more than half our British-grown 

 copra, or one-third of the total crop of the world, but it would much enhance 

 the value of subsequent volumes in the series if the why and wherefore of such 

 a fact could be elucidated, concurrently with its statement. Some minor im- 

 provements might be made in the arrangements of the tables of exports and 

 imports, which are at present a little confusing. 



The subject is one of topical interest, now that people are discovering the 



virtues of "nut-butter" and other margarines, a great part of which supply can 



be derived from within the Empire, in the place of butter purchased from 



European countries. 



L. B. 



MEDICINE 



Amoebiasis and the Dysenteries. By Llewellyn Powell Phillips, M.A., 

 M.D., F.R.C.P., F.R.C.S. [Pp. xi + 147.] (London : H. K. Lewis, 191 5. 

 Price 6s. 6d. net.) 



The present interesting volume is the result of a praiseworthy attempt to compile 

 a modern account of the various dysenteries due to amoeba?, bacilli, certain 

 flagellates and ciliates, and Schistosoma. The author in his preface acknowledges 

 the help received from the Tropical Diseases Bulletins, and the use made of them 

 is very obvious in his text. 



The book consists of twelve chapters, the first six of which deal with parasitic 

 amoebae and amoebiasis. The succeeding chapters relate to balantidian or ciliate 

 dysentery, to flagellate dysentery due to Trichomonas, Tetramitus, and Lamblia, 

 and tobilharzial dysentery, while the last three chapters are concerned with bacillary 

 dysentery and its treatment. There is a bibliography of ten pages, but apart from 

 references to work performed in the later years of the nineteenth century, and that 

 summarised since 191 2 in the Tropical Diseases Bulletin, much of the highly 

 important work of the intervening period — more particularly that just prior to 

 191 2 — has been overlooked. Thus, the important memoirs of Hartmann and his 



