INDEX. 
page 
C 
Calculi , on the composition of, - - 
- — on one from a dog, - - ~ 39 
• on one from a rabbit, - - - 42 
— — 1 on those of the horse, - - - 43 
Cannon, on the heat excited in boring them, - 8i 
Cavendish, Henry, Esq. Experiments to determine the den- 
sity of the earth, _ 46^ 
ChapmanyMr. Remarks on a rule employed by him, - 26'/ 
Clairbois, M. Remarks on some opinions of his, - - 242 
Clarke, John, M. D. Account of a tumour found in the sub- 
stance of the human placenta, - _ g5 x 
Clay-pit , account of a substance found in one, - - 567 
Concretions , urinary , on the composition of, - 15 
on one from a dog, - - -39 
— on one from a rabbit, - - - 42 
on those of the horse, - 43 
Copper , effect of the Mere of Diss upon it, - - 568, 570 
Corundum stone , account of, 403 
specific gravity of, - - 411,416,44 5 
— - — analysis of, - - - 417 
— description of its crystals, - - 428 
Cube of brass, examination of one, - - 144, 151, 152 
Cuffnells , on the dimensions of the ship so called, - 287 
Cylinder of brass, examination of one, - 146, 151, 153 
D 
Day-labour , price of, at different periods, - -- 176 
Density of the earth. See Earth. 
Depreciation of money, remarks on, - - - 175 
Diamond, specific gravity of, - ~ - 416,447 
Diss Mere. See Mere of Diss. 
Dog, on an urinary concretion from one, - - 39 
E 
.Earth, density of, experiments to determine, - - 469 
apparatus used therein, — - 47 rl 
~ method of observing, - - - 474 
account of the experiments, - - 47^ 
— — method of computing, from the experiments, - 509 
