CONTENTS. 
I. The Bakerian Lecture , on some chemical Agencies of Electri- 
city. By Humphry Davy, Esq. F.R.S. M. R. I. A. page 1 
II. On the Precession of the Equinoxes. By the Rev. Abram 
Robertson, M. A. F. R. S. Savilian Professor of Geometry in 
the University of Oxford. p. 57 
III. An Account of two Children horn with Cataracts in their 
Eyes, to shew that their Sight was obscured in very different 
Degrees; with Experiments to determine the proportional 
Knowledge of Objects acquired by them immediately after the 
Cataracts were removed. By Everard Home, Esq. F.R. S. 
P ■ 83 
IV . Observations on the Structure of the different Cavities, which 
constitute the Stomach of the fVhale, compared with those of 
ruminating Animals, with a View to ascertain the Situation 
of the digestive Organ. By Everard Home, Esq. F. R. S. 
P- 93 
V. On the Formation of the Bark of Trees. In a Letter from 
T. A. Knight, Esq. F. R. S. to the Right Honourable Sir 
Joseph Banks, Bart. K. B. P. R. S. &c. p . 103 
