166 Dr. Matons (tiid Mr. Rackett's 



The second edition of D'Argenville was augmented by a his- 

 tory of the MoUusca inhabitants of shells, and three new plates, 

 two of which are illustrative of those animals ; and the latter are 

 figured, in general, of their natural size. 



In 1780 there was another publication of this admirable work, 

 with considerable additions, corrections, and improvements, by 

 Messrs. Favanne de Montcervelle (father and son). 'J'here are 

 upwards of 2000 shells figured in this edition, and in so masterly 

 a manner that the work, on the whole, surpasses every thing of 

 the kind wliich the world had seen before, antl must still be held 

 in the iiighest estimation by the lovers of testaceology. 



BARTRAM 



appears in the Fhi/osophical Tronsactions as author of some " Ob- 

 servations concerning the Salt-marsh Muscle, the Oyster-banks, 

 and the Fresh-water Muscle of Pennsylvania." These obser- 

 vations are accompanied by figures. 



NEED HAM, 



whose account of Microscopical Discoveries is well known in our 

 own country, deserves mention here, as having given a very full 

 description of the I.epas anafifcra, Avith figures of that shell and 

 of various parts of the contained animal, which arc referred to by 

 Linnanis. 



At this period the " Tesfacen-T/ieoIogia" of 



LESSER 8 



was written, with a view to elevate tiie study of those lieautiful 

 and varied crcat\urs that inhabit the depths of the ocean to a 

 level with otfiiTs morr- commonly chosen for demonstrating 

 ihc ]»)uer and wisdom of the divine Ruhr of the universe; and 



surely 



