CONTENTS. 
I. The Croonian Lecture on Muscular Motion. By Everard 
Home, Esq. F. R. S. page 1 
II. The Bakerian Lecture. Observations on the Theory of the 
Motion and Resistance of Fluids ; with a Description of the 
Construction of Experiments , in order to obtain some funda- 
mental Principles. By the Rev. Samuel Vince, A. M. F. R. S. 
p- 2 4 
III. On the Nature and Construction of the Sun and fixed Stars. 
By William Herschel, LL.D. F. R. S. p. 46 
IV. An Account of the late Eruption of Mount Vesuvius. In a 
Letter from the Right Honourable Sir William Hamilton, 
K. B. F. R. S. to Sir Joseph Banks, Bart. P.R. S. p. 73 
V. New Observations in further Proof of the mountainous Ine- 
qualities t Rotation, Atmosphere, and Twilight, of the Planet 
Venus. By John Jerome Schroeter, Esq. Communicated by 
George Best, Esq. F. R. S. p. 117 
VI. Experiments on the Nerves, particularly on their Reproduc- 
tion; and on the Spinal Marrow of living Animals. By Wil- 
liam Cruikshank, Esq. Communicated by the late John 
Hunter, Esq. F R. S. p. 1 77 
VII. An experimental Inquiry concerning the Reproduction of 
