204 J)r. ISIaton's and Mr. Rackett's 



which, however, as they include all the species then known to 

 the southern navigators, may be considered as constituting a com- 

 plete work, so far as it goes, and it was all that Mr. Martyn had 

 absolutely engaged himself to execute. There is only one species 

 on a plate, but each is exhibited in different aspects, with incom- 

 parable elegance, and with great correctness of drawing and 

 colouring. 



In the same year with the first volume of the Universal ConcJio- 

 logy appeared a description of the minute shells found on the 

 Sandwich shores by 



WILLIAM BOYS, 



with whose name ought also to be joined that of 



GEORGE WALKER, 



by whom considerable additions were made to the observations 

 of Mr. Boys, and who drew the figures. This work contains three 

 plates, exhibiting ninety species (inclusive of three MoUusca), both 

 of the natural and of a magnified size. Each species is concisely 

 described in Latin, agreeably to the Linnean method, and accom- 

 panied by some observations in English relative to colour, degree 

 of i-arity, &c. 



LEFEBURE DES HAYES 



gave a very full description, accompanied by figures, of the 

 Chiton squamosus, which will be found in the Journal de Physique 



for 1787. 



The " Nova Testaceorum Genera" of Munter Philipsson were 

 published, as an Inaugural Dissertation, at Lund, under the Pre- 

 sidency of 



RETZIUS. 



This performance contains many judicious remarks relatiAe to 

 the Linnean genera, which, the author proposes in some instances 



to 



