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IV. A Letter from Cromwell Mortimer, 
M. D. Fellow of the Royal College of Phy- 
ficians London, Secretary to the Royal 
Society of London, Member of the Gen- 
tlemens Society at Spalding, &c. to William 
Bogdani, Efq-, F. R. S, and Member of the 
faid Society at Spalding, %fyc. containing a 
fhort Account of Dr. Alexander Stuart's 
i Taper concerning the Mufcular Stru&ure 
of the HEART : Which was read at fever al 
Meetings of the Royal Society in May 
and June 173 5. drawn up at the Requeji 
of feveral Gentlemen of the Spalding Society. 
Now publifhed with fome Additions . 
© ear S I R, 
I Was out of Town when your Letter of the 23d 
paft came to my Houfe, whereby you inform me, 
it would be highly agreeable to our Fraternity at 
Spaldingy if I would oblige them with a (hort Ac- 
count of Dr. Stuart's mod curious Papers on the 
Heart, lately laid before the Royal Society : I did 
not come to Town till fome Days after, and then I 
waited for an Opportunity of feeing Dr .Stuart-, and 
asking his Leave to fend you an Account of the 
Papers, as delired, which I ought not to do without 
it: Thefe are the Reafons of my not having wrote 
fooncr. I delire you to make my Compliments to 
the. 
