BOOK-NOTES, NEWS, ETC. 103 



in this field of study. Professor Keeble has, however, done much 

 better than that. The series of volumes, to which the present is 

 a notable addition, has been designed by the Syndics of the 

 Cambridge University Press not to meet the needs, already so well 

 catered for, of beginners, but to present in a compact form the 

 results of literary and scientific research to educated readers, 

 through the medium of writers conversant, at first hand, with the 

 subjects respectively entrusted to them. To Professor Keeble has 

 therefore fallen the congenial task of producing what is really a 

 monograph of two Turbellarian worms, Gonvoluta roskojfensis and 

 G. paradoxa, animals containing coloured cells which, by their 

 powers of photosynthesis, take a share in providing nutritive 

 materials for the worms in question. Having himself borne a 

 leading part in the study of Gonvoluta, and endowed with the 

 capacity of clear exposition wedded to much felicity of phrasing, 

 the monograph bears a double warrant, namely of authority and 

 of literary grace. The relations of the worms to their respective 

 environments, their geotropism, phototropism, nutrition, &c., are 

 all explained in a way that no intelligent person can possibly 

 misapprehend. Particularly interesting to botanists is the account 

 of the discovery, the author's own, of the Chlamydomonadineous 

 alga which furnishes the green cells of G. roskojfensis, a discovery 

 crowned by brilliant success after much painstaking effort. Readers 

 of this Journal, if they wish to give themselves an intellectual 

 treat at almost nominal cost, cannot do better than get a copy of 

 this cleverly written little book. 



S. M. 



BOOK-NOTES, NEWS, dc. 



We are glad to learn from the January number of the Selborne 

 Magazine that the Selborne Society has decided to take up the 

 question of the protection of British plants. It has always been 

 a matter of surprise to us that this matter has been almost 

 entirely neglected by the Society, although attention was more 

 than once called to it by a former editor of the Society's maga- 

 zine, and we can only hope that the saying " better late than 

 never " may find its fulfilment in this case. A section of the 

 Society, of which Dr. Rendle is the president and Mr. A. R. Hor- 

 wood, of the Leicester Museum, the recorder, has been formed to 

 take up the matter, and the latter will be glad to receive offers of 

 cooperation. We hope that tlie Society will at the same time take 

 proper steps to call attention to the general practice of leaving 

 hedgebank- scrapings and hedge-clippings to accumulate on grassy 

 roadsides, and to the throwing-up of road sweepings upon hedge- 

 banks, to the destruction of vegetation and the uglification of the 

 countryside. 



How large and ready a welcome has been accorded to Mr. T. H. 

 Russell's introduction to the study of the Mosses and Liverworts 



