SCIENCE-GOSSIP. 



297 



firm of publishers. Professor Bonney reminds us 

 in his preface that, although many works exist in 

 several languages on the subject of the work of ice 

 in modifying the physical features of the world, they 

 have generally been written to support some parti- 

 cular theory. In the book before us we have the 

 whole subject admirably reviewed in three sections. 

 These are : Section 1 — Existing Evidence, in which 

 Dr. Bonney discusses Alpine glaciers, past and 

 present, and the Arctic and Antarctic ice-sheets ; 

 Section 2— Ice-Work proper, in Britain and other 



The Splash of a D/op. By Professor A. M. 

 Woktiiington, M.A., F.R.S. 7G pp., small post 

 8vo, illustrated by 13S figures. (London : Society 

 for Promoting Christian Knowledge. New York : 

 E. and J. B. Young and Co. 1895.) Price 2s. Gd. 



This is a reprint of a discourse delivered at the 

 Royal Institution of Great Britain in May last, 

 by Professor Worthington, and it is excellently 

 illustrated, as can be judged from the three 

 examples which have been lent to us by the 

 Secretary of the Society that published the 



SERIES XIV. 



Engravings of Instantaneous Photographs of the Splash of a Drop of Water 

 falling 40 cm. into Milk. 



Scale about -/V of actual size. 



t = o sec. 



t =-0056 sec. 

 From "The Splash of a Drop," by Prof. A. M. Worthington, F.R.S. 



parts of the world. Section 3 is devoted to 

 Theoretical Questions, including the number, 

 temperature and possible causes of the glacial 

 epochs ; also a survey of glacial deposits. Con- 

 sidering the limited space allowed in the volumes 

 of this series, it would not have been easy to have 

 more successfully treated so large a subject. 

 Though condensation has been necessary, as a 

 treatise for the general reader and an aid to the 

 geologist who has not yet commenced to think of 

 the importance of a knowledge of ice-influence, we 

 know of no book so useful. 



book. This little work forms one of the 

 "Romance of Science Series" of the S.P.C.K., 

 which are all admirably done by first-class 

 authorities on the dozen various subjects already 

 published. As stated by Professor Worthington 

 in his opening sentence, some people may wonder 

 what he can say about such a rapid phenomenon, 

 that can fill all his pages and provide subjects for 

 so many illustrations. Yet it forms a most inte- 

 resting little work, the more so as it is a simple 

 subject anyone can investigate, if the instructions 

 given by the Professor are followed. He com- 



