280 Reviews — W. J. Harrison — A Text-hook of Geology. 



chapter the views of Dr. J. C. Thresh on the " Saline Constituents of 

 Chalk Waters " receive especial attention and criticism. Appendix I 

 contains critical remarks on some species of fossils by Messrs. E. T. 

 Newton and A. J. Jukes-Browne, and a list of fossils from the 

 Chalk of England, compiled from various authors. We do not 

 propose to say anything about these lists beyond asking on whose 

 authority Uintacrinns westfaliciis, Schlueter, is quoted on pp. 8 and 

 503. Dr. Eowe in his careful papers has nowhere attached a specific 

 name to this Crinoid, nor has Dr. Bather, in whose hands the bulk 

 of the material has been for years, done so. The matter is still 

 sub j'ltdice, and those who, without special knowledge and without 

 seeing the material, have definitely identified the English specimens 

 with the form from Westphalia, have incurred the grave responsibility 

 of introducing into our lists yet another name at present meaningless 

 and confusing. 



The volume concludes with a Bibliography, in which we are glad 

 to see an old friend, the Eev. J. Townsend, who wrote on Wiltshire 

 in 1813, and who is the special subject of a note as to the interest of 

 his book on p. 193. 



This memoir on the Cretaceous rocks of Britain, projected in 

 two volumes, has been concluded in three, and will form a com- 

 panion to Mr. H. B. Woodward's memoir on the Jurassic rocks. 

 Of the indefatigable energy and trouble taken by the authors we 

 have had abundant evidence, and of the selfless co-operation of their 

 colleagues, still more. We congratulate Mr. Jukes-Browne and 

 Mr. Hill on the completion of their labours, which cannot fail to 

 tend to that progress which is ever continuous in geology. 



11. — A Text-book of Geology : intended as an Intkoduction 

 TO THE Study of the Rocks and their Contents. By 

 W. Jerome Harrison, F.G.S. 8vo ; pp. vii, 350. Fifth edition. 

 (London : Blackie & Son, 1903.) 



WE welcome the fifth edition of this handy guide to geology, 

 not simply because it is the work of a painstaking and 

 enthusiastic worker, but because it is a thoroughly reliable intro- 

 duction to the science. Although the greater part of the work 

 remains as in the last edition (noticed in the Geol. Mag. for 1897, 

 p. 329), revisions of names of fossils and other revisions or additions 

 have been made here and there. In the Appendix there is added 

 a Table showing the range in time of the principal genera of fossil 

 invertebrates. The examination papers in geology comprise some 

 of the later questions set by the Board of Education. The work is 

 one eminently suited to the requirements of those working for 

 examination, though we believe that the halcyon days for students 

 and teachers, for examiners and assistant examiners, under the 

 Board of Education are over ! 



There are a few slips which might be avoided in a subsequent 

 edition. 



P. 15. The Thames does not discharge into the English Channel, 

 but into the North Sea. 



