( V° ) 
Dr. ColeV Anfwer to the foregoing Letter. 
Dear Sir, 
1 Received yours by Mr. Harrifon, together with your 
very obliging Prefent, the two Human Bezoars , (if 
1 may focall them but have- as yet had little opportu- 
nity of having the Opinion of many Phyfitians here 
concerning them : One very Ingenious Gentleman, to 
whom I fhowed them, was an Acquaintance of yours, 
Mr Roger Kennion of Cambridge, who went on Monday 
laft for France , who with Dr. Hobart , as alfo Dr Sloane , 
admire them. 
And now, Sir , as to the latter part of your Letter 5 
I look upon thefe Stones to be not formed of adhering 
Excrements , as you feem to fuppofe, but to be mads 
thus. 
When the Plumb-Stones happen to be included in a 
fit Glandulous Receptacle, I conceive they may come to 
be thus coated over by the vifeous Liquor fecreted out 
of the Secretory Duds of thofe Glandules, which by 
long lying there may come to acquire fo great a Bulk, 
by the continual appulfe of the fame Liquor. 
This Receptacle I guefs to be the lnteftinum cxcum, 
which, tho’ fmall naturally, may be, as other Membra- 
nous and Glandulous Parts are, capable of a confidera- 
ble Extenfion: So th it, when by reafon of the Periftal- 
tick Motion of the Intejiines above, one of the Plumb- 
Stones may happen to be, by its pointed Extremity, in- 
truded 5 the whole may, by the fame repeated, tho’ 
flow Motion, dilate the Cavity fo, that the whole Body 
of the Stone may by the fame Method be ftill farther 
and farther protruded, till it come to the further Extre- 
mity $ which being clofed, muff be prefumed to detain 
it there, fince tis hard to conceive it can quickly get 
out 
