170 Dr. Maton's and Mr. Rackett's 



JO. HENR. COHAUSEN 



was the author of a "-Conspectus Sciographicus Testaceorum." There 

 cannot, howeA^er, be a more strange and unscientific arrangement 

 of shells than the one here proposed ; nor can it answer the pur- 

 pose of any person to whom the descriptions of Pliny, Buonanni, 

 and Rumphius are familiar, to consult it. 



A considerable Avork on shells was published in the year 1755. 



The author, 



NICHOLAS GEVE, 



does not give any scientific names, nor is his description of much 

 use to a scientific reader ; though there are some good references 

 in the notes. He employs both the German and the French lan- 

 guages, and is very diffuse. The plates are the most valuable 

 part of the work, being thirty-three in number, and containing 

 434 coloured figures, Avhich are in general correct. 



DR. AVHYTT 



was author of a description of the ovary of the Buccinum ampul- 

 latmn. This description is accompanied by figures. 



Tavo memoirs on the subject of Testacea Avere laid before the 

 French Academy by 



guettard, 



Avell knoAvn by various other interesting tracts on different 

 branches of natural history. The first of these memoirs is enti- 

 tled " Observations qui peuvent sei'vir ct fanner quelques Caracteres 

 de Coquillages." Fourteen ge/tera are here described, founded on 

 the nature of the contained animals. The second memoir is " sur 

 le Rapport qu'il y a entre les Coraux et les Tuyaux Marins, et entre 

 ceux-ci et les Coquilles." To this are annexed five excellent plates 



of 



