INDEX. 
C page 
Cannon , manner of fixing, at the extremities of a base on Houn- 
slow Heath, - - - - 437 
Cast steel y on welding it, - - - 296 
Chains , steely used in a trigonometrical survey, description of, 423 
experiments to ascertain their relative lengths, - 424 
experiments to determine their rate of expansion, 426 
method of ascertaining their actual lengths, - 434 
Cleghorn, Dr. Remarks on abscesses of the lungs, - 243 
Cold, artificial, on the best methods of producing, - - 270 
Cornea , experiments upon, - - - 10 
Craters, observations of, in the moon, - - - 154 
Ciiu i'k shank, William, Esq. Experiments on the nerves, 
particularly on their reproduction ; and on the spinal marrow 
of living animals, - - *- - 177 
Crystalline humour , observations on, - - 2 
D 
Dalby, Mr. Isaac. Account of the trigonometrical survey 
carried on in the years 1791, 1792, 1793, and 1794, - 414 
Deal rods, remarks on, - - - - 416 
Degree of a great circle, length of, perpendicular to the meridian, 
in latitude 50° 41', - - - - 519 
Dogs, experiments upon, - - 179, 194 
E 
■Eruption of Mount Vesuvius , account of, ? > - 73 
Ether, vitriolic, on freezing water by it, - - 286 
Eye, experiments upon, - - - 14 
Eyes of birds, observations on their structure, - 263 
of quadrupeds, remarks on, - - 267 
F 
Fatty matter, on the conversion of animal substances into, - 239 
Fluids , observations on their motion and resistance, - 24 
Fowler, Dr. Remarks on an assertion made by him, - 260 
Frankland, Sir Thomas, Bart. On welding cast steel, - 296 
