( 3 8 °) 
longer than other Mettals. Caff s Warming- If one promifed a 
warmth for fix or eight hours *, if it performed but for two or three 
hours, it would be of great ufe. ’Tis found by fad experience, how 
hurtful Bright Fires, and efpecially of Stone-coal are to the 
Eyes. 
To retain Fire long, certain Black Earths are ufeful , as we were 
newly informed by the Inquifitive Dr. B. That aGentleman in 
Sommertfetjhire , called Mr. Speke , had bountifully obliged timin' 
fier, and his Neighborhood, by a Black Fat-Earth lately found in 
his Park. But the fame Correfpondent adds , That he never faw 
any parallel to a Sea-weedy which he andfomeof his Fellow-Stu- 
dents had in Cambridge in the mouth of a Barrel of goodOyfters. 
It was fmaller than Peafe-halm, yet cut, itlafted two very great 
Fires of Sea-coal, burning bright in the midft of the Fire • and 
byaftroakof the Tongues, it fell into the Hearth , jingling like 
MettaJ, ' ' 
A Relation 
of an uncommon Accident in two Aged Perfons. 
This was imparted by the above-mentioned Mr. Colepreffe , who 
allures in his Letter, containing this Account, 1 hat the matter of 
lad was thorowly examined by himfelf, and that he was fully, and 
la all refpedls, fatisfied of the truth thereof. 
The Relation of the one , is in the fe words. 
$ofepb sh'ute Clerk, Parfonof Mary (nigh Plymouth) in the 
County of Devon, aged 8 1 years, being a temperate man, and of 
an healthy conftitution, having the in-moft Grinder loofe, and fo 
remaining, perceived, that his mouth, about three Moneths finee,, 
was fomewhatfireightned *, and upon inquiry into the caufe of it, 
found. That he had anewTooth (the third Grinder,) being the 
innermoft of the upper Jaw in the Right Cheek, which ftili remains 
firm. 
The Account of the other follows thus 
Maria Stert, of Benecltffe, in Plympton St . Mary (near Plymouth ) 
in Devon, aged about 75 years, an healthy perfon, having had 
nine children, about the fortieth year of her age loft three of her 
opper 
