C 30 ] 
With a plain prominent ridge m the back be^ 
tween two Jurrows, 
F I G. XL. 
Camden’s Britannia, by Gibfon, Vol. I. ^.93. 1722. 
Woodward’s Foflils. Tome I. part II. p. 28. d. 74.'^ 82^^ 
Owen’s obfervations on the earths, &c. about Briftol. 
p. 192. 
Snake-Jlone, With large tranfverfe ribs, whofe 
ends bend towards the mouth of the (hell: the 
volutions are marked in fome places with a foli¬ 
age like the finuated edge of the leaves of fome 
plants: varies in fize. viz. from five inches and 
under, to two feet and an inch in diameter; and 
eight inches thick : fhell very thin of the color 
of mother of pearl. B. a fe6lion. 
Found in the lime-ftone quarries near Bath 
and at Keynfhamt a Village feven miles from 
Bath on the road to Briftol. So far as I have 
obferved the flats of this fhell lay parallel, and 
conformable 
d Formerly the credulous inhabitants of this Village 
believed thefe Snake-ftones to have been real ferpents, 
chajiged into flone by one Keina, a devout Britifli virgin. 
