[ An 1 
the favour to draw from the Bone itfelf neat Sketches, 
from whence thefe Copies were aftually taken by the 
cnrious hand of a Lady Mrs K. M. 
Figure the ift, (hews the common fliape and fize of 
an Os Frontk, or Forehead-bone of a man of an ordi- 
nary Stature, drawn half as big as the life, with its 
convex or outfide forward. 
a b c d e is the Line the Coronal Suture makes with 
Indentures, elegantly expreft, going round th^ 
upper edge of the Bone, by which it's joined to 
both the Ojfa Bregmatk or Vertick. 
e The place Where thQ Coronal and Sagital Sutures 
meet. 
f The part to which the Bones of the Nofe are 
faftnedi. 
g g The upper part of the Orbits of the Ejes. 
h h Holes in the Bone over the Eyes, that give paf- 
fage to the two large Branches of Nerves that 
fupply the Frontal Mufcle, and thofe of the Eye- 
brows. 
i i The two ProcelFes or Protuberances thatjoyn 
with the firft bone of the upper Jaw : thefc by 
fome accident were broken off the large Bone, 
and therefore are not expreft in the following; 
Figure. 
The meafure round the Ambit of the Coronal Suture 
from a to g was ten inches, and one tenth of an inch 5 
in this Bone from c where the Coronal and Sagittal Sutures 
meet to f, where the Bones of the Nofe are faftened,four' 
inches and a half, from b drawing a Tranfverfe line 
crofs the Forehead to d fix Inches 5 the thicktiefs of 
the Bone was about a quarter of an Inch. 
Figure the 2d reprefents the Gigantic^ Forehead Bone^ 
expreft in the fame pofture with the former, and drawn 
exactly 
