NOTICE. 



Many of our subscribers having urged the formation of a Microscopical section in 

 connection with the British Naturalist , we have decided to arrange this, and also in con- 

 nection therewith for a circulating slide cabinet. This section will be subdivided into 

 decades or circuits of ten persons, and will, it is hoped, be the means of giving a greater 

 impetus to microscopical investigation in the various branches of Natural History. A note 

 book accompanies each cabinet. Those interested and desirous of participating will be 

 good enough to send their names to the Editors, British' Naturalist. 



Arachnida. — It is also proposed to arrange a circulating cabinet, containing 

 typical specimens of British Spiders, with list of names. Those subscribers interested 

 and wishing to join the postal circle, will be good enough to send their names at once 

 to the Editors, British Naturalist, Warrington. 



Notice to Entomologists. — It is proposed to resume the Postal Entomological 

 Exchange Club in connection with the new series of The British Naturalist, on the 

 same lines as conducted in connection with its predecessor. The Young Naturalist. 

 Each circuit will consist of ten members, and those of our subscribers desirous of 

 associating themselves will be good enough to communicate without delay with the 

 Editors of The British Naturalist, Warrington, or to John E. Robson, Hartlepool. 



This scheme, which commends itself to the consideration of those Entomologists 

 who study variation by locality, has been proved to possess very great advantages, 

 as even common species are of interest when there is any local peculiarity attached 

 to them. Forms for recording the results of Sugaring Notes may also be had on 

 application as above. 



