68 THE AMEPaCAX MONTHLY [Apr. 



and no other California earth. Will g-ive in exchang-e 

 celebrated European and Asiatic material, fossil marine, 

 or if necessary, will pay^cash. Address, J. C. Rinnbock, 

 care of Journal. 



Wood Sections. — Send to R. B.Houg-h, Lowville, N. Y., 

 for sample of his sections of wood, 1-1200 inch thick, show- 

 ing- three distinct views of g"rain under each cover g-lass. 



King's Slides. — We have just received a beautiful col- 

 lection of slides from J. D. King-, Ph. D., of Cottage City, 

 Mass., and think they oug-ht to please the most exacting-. 

 Send for his catalog-ue. Located on the very best part of 

 the Atlantic coast he has unexcelled opportunities to g-ather 

 marine specimens. 



Leidy. — A copy of Fresh- Water Rhizopods of North 

 America, with its 1,190 colored fig-ures, is offered by one of 

 our correspondents in Albion, N. Y., for $4.25. The book 

 is rare and now hard to get. This is the only copy we 

 know of on sale. 



W^alter White's Botanical Specimens. — Now we are 

 ready to send complete sets of the beautiful microscopical 

 objects. Please send new orders. 



General Index, — If you have not had the general index 

 to the first sixteen volumes of this journal please write 

 immediately for one, and state which volumes you have 

 preserved. 



In German. — We have some extra copies of Zeitschriftfur 

 Angewandte Mikroskopie , von G. Marpmann, Leipzig^ to send free 

 to those who wish to see sample copies. 



Books. — A subscriber asks about John Phin's publica- 

 tions. Send to the Industrial Publishing Company, 16 

 Thomas street, New York, for list of Phin's books and 

 other microscopical publications. They are all cheap but 

 not the latest published. 



Personal. — Prof. Jeffrey Bell, one of the secretaries of 

 the Royal Microscopical Society is to be succeeded by Dr. 

 Hebb. ^ 



