LETTER Vir. 179 



fmall Spring of the fame Nature which I have 

 not yet (ten at Pavenham in this County of 

 Bedford : It runs well all Summer, but is dry Iq 

 Winter -, and undoubtedly for the felf fame reafon, 

 it being fituate at the foot of the Hills near the 

 river Oufe. This I prefume to be the cafe in ge- 

 neral of Springs that are ufualy very low about 

 Michaelmas, i\nd give me leave farther to obferve, 

 (from feveral of my Acquaintance who were eye 

 witnefles of it in their Travels mlo Italy) That 

 the Rivulets of many fuch Villages as border upon 

 the Alps, do always fwell, and frequently over- 

 flow their common Boundaries, when the Sun is 

 got up fo far Northwards towards the Tropick 

 of Cancer, as to melt the Snow upon thofe high 

 Mountains, andofcourfe to fend down the Snow- 

 water in Torrents. In (hort, all fprings I believe 

 do owe their original, to Vapours, to Snow, or 

 to Rain. 



35. I thought I had finiflied my Letter; but 

 upon reading this day's London Evening Pojt, Ifind 

 I have not, there being in it the following re- 

 markable Paragraph taken out of the Paris Ala- 

 main for November 21. 1742. " The third Me- 

 *' morial which Mr. Reaufnur read the ij""^ 

 " inftant, at the Royal Academy of Sciences, re- 

 " lates to a very curious difcovery that has been 

 " made at the Hague by Mr. T'remblay. It is an 

 ^^ Aquatick Infed, called a Polypus, which ha$ 



M 2 ** this 



