Historical Account of Testaceological Writers. 179 



bouring country ; in which if, after almost unprecedented pains 

 had been taken, both by himself and by an indefatigable con- 

 temporary, for the formation of a perfect system, the principles 

 of Linnaeus remain unimpaired, we may fairly relinquish the ex- 

 pectation of being presented with any less exceptionable. " On 

 peut dire," says M. Lamarck, " que Linne.a etabli les vrais prin- 

 cipes qu'on doit suivre dans l'etude e.t la determination des co- 

 quillcs, et qu'il a pose les bases de cette interessante partie de 

 nos connoissances." (Mem. de la Soc. d'Hist. Nat. p. 63.) 



Having made these general remarks on the Testaceological part 

 of Linnaeus's Syste?na, we shall proceed to notice such other of 

 his works as relate to this branch of natural history. The first of 

 these in order of time (and certainly not the last in point of value) 

 was the Fauna Suecica, originally published in 1746, and con- 

 taining sixty species of Testacea admirably described, with their 

 synonyms at full length. In the second edition, which came 

 forth in 17^1, the number of species discovered to be natives of 

 Sweden was augmented to eighty-nine, and the genera exhibited 

 the improvements adopted in the 10th edition of the Systema. 

 But, prior to the appearance of the improved Fauna Suecica, the 

 author had described the cabinets of the king of Sweden and 

 count Tessin, the contents of which had, no doubt, furnished him 

 with neAv hints towards perfecting his method in every branch of 

 natural history. It is to be lamented, however, that neither the 

 Museum Tessinianum nor the Museum Adolphi Friderici Regis con- 

 tain descriptions or figures of more than three species of Tes- 

 tacea. They are works of much splendour, in point both of t3 r po- 

 graphy and engraving, but afford very little assistance to the hel- 

 minthologist. In the description of another Museum (that of the 

 queen of Sweden) Linnams made ample amends for his brevity 

 in that of the former: and her Swedish majesty's collection being 



2 a 2 particularly 



