146 MOSSES AND LIVERWORTS 



" Easy Guide to the Study of the British Hepaticse," 

 hy Dr. M. C. Cooke, appeared in Science Gossip ; 

 this gave a very condensed account of the various 

 then known species, and was illustrated by wood- 

 cuts, but the nomenclature used is now quite out 

 of date. In 1894 "A Handbook of the British 

 Hepaticse " was written by the same author, con- 

 taining much fuller details, and illustrated by 

 numerous wood-cuts and seven plates. In 1902 

 was published "A List, with Descriptive Notes, 

 of all the Species of Hepatics hitherto found in 

 the British Islands," by the Rev. H. W. Lett, 

 which forms a very serviceable book, at the 

 moderate cost of 7s. 6c?., though, unfortunately, 

 it is not illustrated. Shortly after this date, Mr. 

 W. H. Pearson's " Hepaticae of the British Isles " 

 (which is undoubtedly, at the present time, the 

 standard work on the subject) was completed. 

 In this will be found very full and careful de- 

 scriptions of all the species, as also most useful 

 observations on their characteristic features, and 

 other points of interest ; the whole is completed 

 by a set of beautiful drawings, one full-sized plate 

 being given to each species. The only drawbacks 

 to the work are its bulk and its costliness, the 

 price of an uncoloured copy being something over 

 six pounds. 



