IG INDEX. 



Atmosphere, resistance of, to falling bodies, vii. 369 

 description of a new hygrometer for measuring tlie 



force and weight of aqueous vapour, and the corresponding 



evaporation in, viii. 29 8 -3 IS 



detail of experiments with, 319-322 



— • nature of, x. 1 1 . Observations on the passage of light 



through, 12-25. Temperature of, how far affected by the 



great eclipse of September 7th, 135-137 



of the Baltic sea, temperature of, xii. 341-342. The 



atmosphere, variation of the temperature of, deduced from the 

 mean refraction, 396-398 



electricity of the, xiii. 431 



oh the finite extent of, xiv. 167 



on the ascent of clouds in, xv. 165, 166 



a finite and exact expression for the refraction of one, 



nearly resembling that of the earth, xvii. 255'256 

 ■ I on the ra(Jiation of heat in, xviii. 305-312 



— ' variation in the composition of, xx. 393 



Atmospheric electricity, researches on, ii. 416-418 



electrometer, account of, ii. 249-253 



Atmospherical phenomena, .1817, v. 132. 



refraction, observations on, xi. 353-370 



. historical sketch of the various solu- 

 tions of the problem of, xviii. 347-378 



Atomic theory, historical sketch of the rise and progress of, iii. 

 154-156 



• weights, table of, xvii. 383 



Atoms (spherical), observations on the theory of, and on the rela- 

 tion which it bears to the specific gravity of certain minerals, 

 iv. 30-42 



Atropia, analysis of, xi. 204 



Attraction of cohesion, nature of, i. 90. Of composition, ibid. 

 Capillary attraction, 94. Investigation of the theory of capil- 

 lary attraction, 290 



and repulsion without electricity, phenomena of, ii. 



427-428 



capillary, experiment on, xis. 134 



