THE NATURALIST 



FOR 1917. 



NOTES AND COMMENTS. 



taylor's monograph of mollusca. 

 Notwithstanding the depletion of his staff by voluntary and 

 forcible enlistment, Mr. J. W. Taylor has brought out part 

 22 of his Monograph of the Land and Fresh-water Mollusca of 

 the British Isles,* which apparently commences a new volume. 

 He also hopes to issue a further instalment shortly. Part 22 

 deals with Hygromia striolata ; H. hispida ; H. revelata ; 

 H. fusca ; and H. obvoluta. Each is dealt with under the 

 various and familiar headings, and well illustrated, in Mr. 



Young shell of H. striolata X 5, Grange, Mr. F. Booth, showing the 

 hispid epidermis (from photograph by Mr. W. Bagshavi ). 



Taylor's usual careful way ; and with each species is given a 

 photograph of some zoologist associated with the particular 

 form. There are also the familiar distribution maps. There 

 is a coloured plate showing the various species of Hygromia 

 and Helicodonta, which is perfect. The only error we have 

 noticed in the part is that Mr. T. Sheppard's record of the 

 fossil form of H. hispida for Yorkshire, should be from Biel- 

 becks, near Market Weighton. We are kindly permitted to re- 

 produce one of the 93 illustrations in the text, as well as the 

 coloured plate already referred to. 



THE VASCULUM. 



The Vasculum for November, is excellent. Mr. G. Bolam 

 contributes two good papers on Birds, which contain valuable 

 records and observations, including a note on a Little Bittern 

 at Gateshead on July 27th. Mr. G. B. Walsh writes ' On the 



64 PP-> 5 plates, 7s. 6d. net. 



1917 Jan. 1. 



