CONTENTS. 
I- The Croonian Lecture on muscular Motion. By Anthony 
Carlisle, Esq. F. R. S. page 1 
II. Experiments for ascertaining how far Telescopes will enable us 
to determine very small Angles , and to distinguish the real from 
the spurious Diameters of celestial and terrestrial Objects : with 
an Application of the Result of these Experiments to a Series of 
Observations on the Nature and Magnitude of Mr. Harding’s 
lately discovered Star. By William Herschel, LL. D. F. R. S. 
P- 31 
III. An Essay on the Cohesion of Fluids. By Thomas Young, 
M. D. For. Sec. R.S. p. 71 
IV. Concerning the State in which the true Sap of Trees is depo- 
sited during Winter. In a Letter from Thomas Andrew 
Knight, Esq. to the Right Hon. Sir Joseph Banks, Bart. K. B. 
P.R.S. p. 88 
V. On the Action of Platina and Mercury upo?i each other. By 
Richard Chenevix, Esq. F. R. S. M. R. I. A. &c. p. 104 
VI. An Investigation of all the Changes of the variable Star in 
Sobieski’s Shield, from five Tear’s Observations, exhibiting its 
proportional illuminated Parts, and its Irregularities of Rota- 
tion ; with Conjectures respecting unenlightened heavenly Bodies. 
By Edward Pigott, Esq. In a Letter to the Right Hon. Sir 
Joseph Banks, K. B. P. R. S. p. 131 
