420 



as unrecognised British species," " Mr. W. S. Kent has detected 

 nearly forty distinct British species " [of* water- mites], should 

 certainly have been revised or eliminated. The fact is, scarcely 

 a single word or even letter of the original letterpress has been 

 altered, for the very mistakes in spelling, such as " Drapernaldia " 

 for Draparnaldia, " Argyroneuta " for Argyroneta, " Midgf " 

 for Midge, have been brought forward. 



D. J. S. 



Hidden Beauties of Nature. By Richard Kerr, F.G.S. Second 

 Edition; 224 pages, 59 illustrations. London, 1900: Re- 

 ligious Tract Society. Price 2s. 6d. 



It is very satisfactory to see that it has been found necessary 

 to issue a second edition of this extremely well got-up little 

 book. The author's efforts to awaken an interest in micro- 

 scopical studies have e\^dently not been altogether in vain. 

 As was pointed out in these pages when the book was reviewed 

 in 1895, the work is only designed for such as are almost entirely 

 ignorant of the beauties revealed by the microscope, and judged 

 from this point of view it will certainly hold its own with any 

 of the popular handbooks at present before the pubhc. The 

 book consists of a series of short talks on such subjects as 

 Sponges, Diatoms, Atlantic Ooze, Corals, Snow Crystals, etc. ; 

 but the most characteristic feature is undoubtedly the fine series 

 of illustrations of the Radiolaria of the Challenger expedition. 

 Another noteworthy feature is the chapter on fresh-water 

 Rhizopods, with many figures taken from Leidy's splendid 

 monograph. 



D. J. S. 



Chats about the Microscope. By Henry C. Shelley. 101 



pages, 5 full-page illustrations, and 30 figures in the text. J 

 London, 1899 : The Scientific Press, Ltd. Price 2s. ' 



Text : Pretty good, what there is of it. Illustrations : Quite 

 enough of them, such as they are. 



Honestly, that is about all one can say for this well printed 

 ^nd neatly bound little book. Why such a meagre amount of 



