THE JOURNAL OF MALACOLOGY. 



IMPORTANT NOTICE. 



On an after December i6th, the price of Volumes 

 vii, viii, and ix, will be advanced to 21s. each. New Sub- 

 scribers may obtain copies at the original price, 12s., if 

 ordered when subscribing to volume x. As only a few 

 complete sets of these Volumes remain, early application 

 should be made. 



The Editor desires to purchase clean copies of 

 Volumes iv, v, and vi in their original paper covers. 



A Monograph of the Slugs of the British Isles (In preparation). 



It is intended in this work to give a full and exhaustive account of the Natural 

 History of the Slugs of the British Isles, together with figures and full descriptions 

 of all the known species and varieties. Special attention will be given to the 

 anatomy and variation. 



Specimens of any British species or varieties will be gratefully acknowledged. 



All communications should be addressed to — 



W. E. COLLINGE, The University, Birmingham. 



R. FIELD & CO., 



Opticians and Scientific Instrument 



MAKERS, 



142, Suffolk Street, BIRMINGHAM. 



Makers of . . , Established isir. 



WRIGHT & ANDERTON'S Striated Silver Lantern Screens. 



BAYLEY'S Polarimeter. 



WELDON Range Fiqder, &c., &c. 



STUDENT'S IVIIOROSGOPE 



Of best Continental model, with best diagonal rack and pinion 

 coarse adjustment, best triangular bar screw fine adjustment, 

 draw tube, joint for inclination, ^-in. or ^-in. objective, and 

 I -inch (double combination) objective, and eye-piece, etc., in 

 case __--_.. £5 - 5 _ Q. 



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