INDEX. 



A. 



ji4ir in the LungSy quantity of, page 295. 



Anthelittt account of, 135. 



Aqueous vapour exhaled from the Lungs, quantity of, 315. 



Ardwick Limestone^ analysis of, 152. 



Aitronomical observations at Cornbrook, 202. 



Atmospheric pressure, its effects on the animal frame, 291. 



Aurora horealis, observations on, 81. 



B. 



Barometer, table of observations on, at Crumpsall, 57- 

 Blackwall, Mr. John, F. L.S. his remarks on the natural 

 history of the swallow tribe, 36; — his meteorological observations 

 at Crumpsall, 54 ; — account of anthelia, 135 ; — account of a 

 white luminous rainbow, 140 ; — on the twinkling of the stars, 

 143; — injury to the oak foliage, 156; — on the instinct of 

 birds, 254. 



liotanical, 8fc. notices on Llandudno parish, Carnarvonshire, 165. 

 Britain, ancient state of, 87> et teg. 



C. 



Catenary, forms of in chain bridges, 354. 

 Chains, testing their strength recommended, 394. 



4 B 



