Just published, 



THE MICROGRAPHIC DICTIONARY; 



A Guide to the Examination and Investigation of the Structure and 

 Nature of Microscopic Objects. 



By Dr. Griffith and Professor Henfrey. 



Illustrated by 41 Plates, each with numerous Figures, some Coloured, 

 and 816 Woodcuts. 777 pp. 8vo, £2 : bs. 



" It contains an amount of well-digested and authentic information upon the wide variety 

 of subjects it is devoted to, which is nowhere else to be found in any one work or set of 

 works. We find it an admirable volume for reference. The articles on the subjects we are 

 familiar with are correct and weU worked up aa far as they go ; and the bibliographical cita- 

 tions at the end of each considerable article direct us to the best and latest sources of fuller 

 information. But it is to the general student or amateur of natural history, and to the 

 -medical student, who can rarely he expected to possess a general scientific library rich in 

 works of original investigation, that this volume will be invaluable ; and to these we cordially 

 recommend it." — Professor Asa Gray in SilUman's American Journal, March 185G. 



John Van Voorst, 1 Paternoster Row. 



