1 24 Mr. Ray to Dr. Lifter. 



gland. Of your Water-Snails I have difcovered moft, 

 if not all. Your firft Buccinum, which is the 18 th 

 in the Plate, I ufe to call Conchula Per/tea for fome 

 Refemblance, if I miftake not, it hath to that Shell : 

 It hath alfo the Lifcenefs of thofe they call Porcel- 

 lane Shells beyond Seas, and ufe for Cofmeticks. I 

 have obferved a fmall Water-Snail in our Brooks, 

 which I ufe to term Nerites Fluviatilis for its Simili- 

 tude, which I think is not in your Table, unlefs it 

 be the 1 8 5 but then it is not rightly figured ; for the 

 Bottom, or Vertex, in mine, is round, and not at all 

 produced. I have alfo obferved abundantly in our 

 Brooks a Patella Fluviatilis no broader than a Lentill 

 flicking to the Stones. But of thefe Things, being 

 thus by you quickened, I fhall hereafter (God grant- 

 ing Life and Health) take more exa£fc Notice. I 

 thank you for your Communications, and exhort you 

 as earneftly as I can to proceed with all Vigour in 

 your Search into the Hiftory and Myfteries of Nature : 

 In the Profecution whereof, the Succefs you have al- 

 ready had, and Difcoveries you have made, have both 

 rewarded your Endeavours, and given you Encou- 

 ragement to per fill. 



Mr. Oldenburgh to Mr. Ray. 



SIR, London, Sept. ly. — 74. 



Y late Abfence from London, and other Occa- 

 fions, have kept me from fooner giving you 

 the following Account from Seignior Boccone, ip Re- 

 turn to the Letter you wrote to him, which, it feems 

 by this his Anfwer, was without your Name to it. 

 He faith thus in French : 



L'Autheur 



