Exchange. — I have a fine series of North American Coleoptera frona New Mexico, 

 Arizona, California, the Eocky Mountains and Alaska, which I offer in exchange 

 for hooks or separates on Entomology (especially Coleopterology) in any language 

 Address, stating what you have for exchange. Insects of other orders will be col- 

 lected for Miose who desire them, on the same terms. — H. F. Wickhomi, Iowa City, 

 Iowa, U. S., America. 



Changes of Address. — D. Walker, from Wilton Gardens to 98, Renfrew Street, 

 Glasgow. Capt. E.. B. Robertson, from Swansea to Coxhorne, Gharleton Kings, 

 Cheltenham. G. C. Dennis, from Tower Street, York to 39, Blossom Street, York. 

 G. B. Routledge, from Carlisle to 50, Russell Square, W.C. 



MEETINGS OF SOCIETIES. 



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Chambers, London Bridge. — The second and fourth Thursdays in each month, at 

 8 p.m 



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