( 9^8 ) 
pregnane Teken of that general rmiudation, durable 
as the vain glorious Monarchs I'yramids ar 
Mmpkis; to be perpetuated in the lading Records of 
this Society. See the Figure of this ImprejUion, in Tab, T, 
IV. J curious De/crlftion of the Strata ohferVd 
in the Coal-Mines of Mendip in Somerfet- 
(hire, being n Letter o/John Scrachey Efq-^ to 
Dr, Robert Welded, M.D. and R. S. Soc. and 
by him communicated to the Society, 
I Now fend you the Obfervations which f fome- 
time fince promifed you, relating to the different 
ttrata of Earths and Minerals found principally in 
the Coal-Mines in my Neighbourhood. For the bet- 
ter Illudration whereof, 1 have inclofed a Draught, 
wdiich you mull fuppofe the Setdion of a Coal-Coun- 
try, and to take in about Four Mile from the North- 
Wed ro Soutl>Ead, and may be applied to the Veins 
of Coal as they lye at Faringdon-Gourny, and likewife 
at Bifiop-Sutton, W'hich lad Place is near Stowy, but in 
the Pariili of Cherv Magna in this County of Somerfet. 
For Difeovery of Coal, they fird fearch for the Crop, 
which is really Coal, tho’ very friable and weak, and 
fometimes appears to the Day, as they term it. ; or 
elfe for the Cliff, which is dark or blackilli Rock, and 
always keeps its regular Courfc as the Coal does, ly»> 
ing oblicjueiy over it. For all Coal lies flieiving like 
the Tyie of a Houfe, not perpendicular nor horizontak 
unlefs it be broken by a Ridge, which is a parting of 
Clay, Stone, or Rubble; as if the Veins by fome vio- 
lent Shock were disjointed and broken, lo as to let 
in 
