CONTENTS. 
I. ‘ The Croonian Lecture. On the Irritability of Nerves. By 
Everard Home, Esq. F. R. S. page i 
II. The Bakerian Lecture. On the Mechanism of the Eye. By 
Thomas Young, M. D. F. R. S. p. 23 
III. On the necessary Truth of certain Conclusions obtained by 
Means of imaginary Quantities. By Robert Woodhouse, 
A. M. Fellow of Cains College. Communicated by the Rev. 
S. Vince, A. M. Plumian Professor of Astronomy in the Uni- 
versity of Cambridge. p. 89 
IV. On the Production of artificial Cold by Means of Muriate of 
Lime. By Mr. Richard Walker. Communicated by Henry 
Cavendish, Esq. F. R. S. p.120 
V. Account of a monstrous Lamb. In a Letter from Mr. Anthony 
Carlisle, to the Right Honourable Sir Joseph Banks, Bart. 
K.B. P.R.S. p .139 
VI. An anatomical Description of a male Rhinoceros. By Mr. 
H. Leigh Thomas, Surgeon. Communicated by George For- 
dyce, M.D. F.R.S. p. i 45 
VII. Demonstration of a Theorem , by which such Portions of 
the Solidity of a Sphere are assigned as admit an algebraic 
Expression. By Robert Woodhouse, A. M. Fellow of Cains 
College , Cambridge . Communicated by Joseph Planta, Esq. 
Sec. R. S. p igg' 
