THE 
Croonean LECTURES 
O N 
MUSCULAR MOTION, 
By Browne Langrish M. D. and Fellow of 
the Royal Society. 
Read before the 
ROYAL SOCIETY 
In the Year MDCCXLVII. 
Being a SUPPLEMENT to the C P hilofophical 
TranfaEtions for that Year. 
There can be no greater Prefumption in Favour of a Scheme* 
than that it is fimple, and of a Piece with the known Syftem 
of the Univerfe. 
Mead’s Introd . to bis E {fays on Poifons y Edit. 3* 
LONDON: 
Printed for C. Davis, over-againft Grafs Inn Gate 
in Holboitrn , P r i n t e r to the Pvoyal Society, 
M,scc.XLvm. 
