( 7^7 ) 
V. Part of a Letter from Mr. Aubry, F. R. S. 
DatedFcb 24. to Sir John Hoskyns, 
V. P. of the R. S. Concerning a Medicated 
Spring in Glamorganfliire. 
IN Lancarim (the next Pari(h) is a Medicated Springs 
much frequented from fcveral Counties, time out 
of Mind, for the Kings Evil. There is a RiU ot about 
an Ell broad between Two Collines, covered with 
Wood ; about Twelve Yards from this Spring, the RiU 
falls from a Rock Eight or Nine Foot high, which makes 
a grateful Noife the Spring (which is exceeding clear) 
comes out of a pure White Marie, I thought, there had 
been no White Marie in Wales^ for the Earth is Red 
Above this Spring (about a Yard broad and deep) 
fpreads an old Oak with Hoary Mofs ; on the Boughs 
whereof Two Crutches. AGraduate Doftor hereabout im- 
putes the Vertue of this Spring to the Lime Stone, and 
fays one of the chief Ingredients of theDodors, for the 
Kings Evil, is Lime- Water. 
VI. Several Obfern/ations in the North IJlands 
of Scotland, Communicated to the Royal 
Society by Mr, Martin Martin. 
I. A LL Tribes of Fowls are obferved to have their 
x\ Sentinels, efpecially in the Night, the Watch* 
fulnefi of the Scart is true to a Proverb ; I have known 
one, who by fiirpriEing the Sentinel, catched Three 
Hundred in a Night. 
Ppppp z X. The 
