53 C O N C H O L O G Y. 



lies of the Limpets, Sea-Ears, and Worms ; 

 but not meeting with fuitable encourage- 

 ment, the authors have laid it afide, at 

 leaft for the prefent. 



Natural hifiories, without figures of the 

 objects, are at heft imperfeft ; for at one 

 view figures imprefs the idea of the body 

 much ftronger than the moft finifhed or 

 accurate defcription. It is for that reafon, 

 in the above lift of authors, I have only 

 mentioned thofe with figures, as they of 

 courfe muft ftrike the mind, and aid the 

 knowledge of the ftudy. 



However, it remains yet requifite to re- 

 cite fome few other writers, who, though 

 they have not illuftrated their works with 

 proper figures, frill n;ierit attention. 



The firft of thefc is John Daniel Ma- 

 jor, a phyfician of Kiel, in Holftein, who 

 repubhfhed Columna's excellent w^ork De 



Purpura, 



