C 9*° ) 
IH. An Extract of a Second Letter from Dr. Oli- 
ver, Communicated by Walter Moyle, Efq> 
Spithead, the 9th. of Ottober, 1693. 
S I R, 
I Went once more to the Well to make my Obferva- 
tions, when we lay laft in Torbay y and having a 
little more time than I had before, tho J little enough 
for fo odd a Phenomenon, I (hall anfwer thofe Queftions 
you were pleafed to fend me as well as I am able. 
Queft. Whether the Flux and Reflux be conftant y at all 
times of the Day and Tear^ or only after Rain $ And 
what Account the Country People give of it § 
Anfw. By every Body I met with, I am informed 
'tis mod conftant Winter and Summer, tho' I am apt 
to think, it moves fafter in Winter, when the Well is 
fuller, than in Summer, becaufe when I obferved it firft, 
I think it flow'd fomewhat quicker, than I found it did 
on my fecond Obfervation, which was above fix Weeks 
later in the Year, being towards the end of Augujl ; for 
the Water Was then confiderably ftirunk in the Well , 
notwithflanding we had for about a Fortnight much 
Rain : And tho' when once it began to flow, it perform'd 
its flux and reflux in little more than a Minutes time , 
yet I obferved it would ftand at its loweft Ebb fome- 
times two or three Minutes,fo that it ebb'd and flow'd by 
my Watch about fixteen times in an hour,and fbmetimes, 
I have been told, twenty. As foon as the Water in the 
Well began to rife, I faw a great many bubbles afcend 
from the bottom, but when the Water began to fall, the 
bubbling immediately ceafed. I meafured its high and 
low- water marks again, and found them as before, be- 
tween five and fix Inches diftant; not of Perpendicular 
depth* 
