225 



NOTES AND COMMENTS. 



MR. W. DENISON ROEBUCK. 

 Part I r of Mr. J. W. Taylor's ' Monog-raph of the Mollusca ' 

 "has just appeared, and in it is the block here reproduced, which 

 every reader of the ' Naturalist' will be glad to see. Mr. Taylor 

 * dedicates the genus Arion to Mr. W. Denison Roebuck, F.L.S., 

 of Leeds, whose knowledge of the external morphology of the 

 British slugs is probably unsurpassed, and whose tireless 

 exertions have so immensely extended our knowledg"e of the 



variation and distribution of our native species.' The same 

 part contains a photograph of another Leeds mycologist, the 

 late Thomas Nunneley, ' whose careful and conscientious 

 memoir of 1837 upon the anatomy of Avion nter and three 

 other species was one of the precursors of the modern 

 ■scientific study of slugs.' As a frontispiece there is an excellent 

 "Coloured plate showing various forms of Liniax. 



BRAITHWAITES MOSS FLORA. 

 The venerable past-president of the Yorkshire Naturalists' 

 Union, Dr. R. Braithwaite, F.L.S., has just issued the concluding- 



1905 August I. V 



