316 Reviews — A. J. Jukes-Browne — 



abundant oxygen (as C0 2 , S0 2 , etc.). All that seems necessary, 

 therefore, is to suppose that, when sufficient pressure is brought to bear 

 upon them, these two elements no longer shun one another but enter 

 into compounds in association. There is much in this suggestion 

 which would fall into line with a criticism offered by Gautier in 1907, 

 and, as bearing indirectly upon the same question, one cannot forget 

 the interesting results obtained by Barus regarding "Hot Water and 

 Soft Glass in their Thermodynamic Relations" [Amer. Jour. Sci., 

 1900, p. 161). Perhaps Brun maybe persuaded some day to extend 

 his experimental researches into this untrodden field. But all this, 

 and much more besides, merely arises out of the book, it is not the 

 book itself. The point which has been established, so far as can be 

 judged at this distance from the seat of inquiry, is the anhydricity 

 of volcanic exhalations. With the conviction of the truth of his 

 discovery full upon him, it is not surprising to find Brun quoting 

 Scrope's words written in 1825 — 



' ' I conceive that no more effectual service can be rendered to science than 

 the destruction of any one of those glaring errors which, apparently based upon 

 a few specious facts, and backed by the authority of some great name, are 

 received by the world in general without examination, notwithstanding that they 

 contradict the ordinary march of nature, and consequently throw the extremest 

 perplexity into that of science." 



Those interested in volcanoes should consult the book for themselves. 

 It is to be devoutly hoped that before long its results will be critically 

 tested in the field. Considering the peculiar facilities offered by 

 Kilauea it is perhaps not too much to expect that American scientists 

 will soon take up the challenge and decide the issue once and for all. 



E. B. Bailey. 



II. — The Bdildixg of the British Isles, being a History of the 

 Construction and Geographical Evolution of the British Isles. 

 By A. J. Jukes-Browne, B.A., E.R.S., E.G.S. Third edition, 

 rewritten and enlarged, pp. xv + 470, 80 maps and figures. 

 London: E. Stanford, 1911. Price 12s. 



DUPING the eighteen years that have elapsed since the publication 

 of the second edition of Mr. Jukes-Browne's Building of the 

 British Isles, the records of their construction have increased so 

 greatly that the author has found it necessary to rewrite the whole 

 work. New material accumulates so rapidly that even since the 

 publication of this edition further important changes have become 

 necessary. Thus in the account of the Archean rocks Mr. Jukes- 

 Browne holds that "there is little doubt" that the Moine Gneiss is 

 in part altered Torridon Sandstone ; whereas, to quote one opinion 

 on the other side, the recent memoir on Glenelg shows that this 

 conclusion is not accepted by the Geological Survey of Scotland. 

 Mr. Jukes-Browne has made a most thorough study of the English 

 literature, and he interprets it with stimulating originality, 

 independence of judgment, and admirable fairness ; thus, where 

 the evidence tells against his former conclusions he candidly admits 

 the fact (e.g., p. 341). 



The feature of the book which first strikes attention is the 



