[ 4*5 J 
tion; to obftrudt which, the wall marked a , in the in- 
clofed fketch, Tab. X. was eredted 70 feet diftant 
from the fea fhore, and 57 feet perpendicular above 
hi^h water mark. In blowing up the rock to make 
way for the foundation of the faid wall, there was dis- 
covered confiderable quantities of petrified bones, as 
you may perceive upon examining the piece of rock, 
which you may be certain was taken from the fpot 
by Colonel Green, and has been in the pofi'eflion of 
no perfon but himfelf, till delivered to. 
Dear Sir, 
BY the examination of two pieces of the rock 
of Gibraltar, which are in my pofieffion, I find that 
they are not, what I, at firft, took them to be, hu~ 
?nan bones, but thofe of fome quadrupede. I dis- 
covered this, with my brother’s afiiltance, by clear- 
ing the teeth of the cruft that covered them, fo as 
to fee their fhape more diftindtly. 
The two mafles of bones are blended with pieces 
of the marble, of which the whole rock of Gibral- 
Dear Sir, 
Your much obliged, 
and moft obedient 
T ower, 
17 Dec. 1 769, 
humble fervant, 
John Boddington 

tar. 
