562 INDEX. 



Compressed air, phenomena on the issues of, 208, et seq. 



Crompton, Mr. Samuel, memoir on, 318. 



Curve of quickest descent y particular case investigated, 1. 



Dalton, John, F. R. S. on the rock strata around Manchester, 

 148; — on the rain, &c. at Geneva and at Great St. Bernard, 

 231; — on the effects of atmospherical pressure on the animal 

 frame, 291 ; — on the quantity of food compared with the 

 secretions in the animal system, ascertained by experi- 

 ment, 303. 



Dew-pointy observations on, 77- 



E. 



Elasticity y of cast iron, 425. 

 Entomology y on the study of, 112. 



F. 



Fairbairn's, Mr. William, experiments on the strength of cast 

 iron beams of the common form, 541. 



Floating island on Derwent lake, 19 ; — at Newbury-port, 

 America, remarks on, 225. 



Foody quantity consumed by an individual, 303, &c. 



Forms of cast iron beams influence their strength, 453, et seq. 

 —best, 468. 



O. 



GaseSy new method of weighing them, 195. 



H. 



Hadfield, Mr. William, his astronomical observations on the 

 Latitude and Longitude of Manchester, 201. 



HoDGKiNSON, Mr. Eaton, on the forms of the catenary in sus- 

 pension bridges, 354 ; — on the chain-bridge at Broughton, 384 ; 



