20 Meldrum, Developmetit of the Atomic Theory. 



1 6. "An Essay on the theory of mixed gases and the state of 



water in the atmosphere," by John Gough. Read Nov. 

 4th. Pub. Manchester Memoirs, [2], vol. i, p. 296, 1805. 



17. "A reply to Mr. Dalton's objections to a late theory of 



mixed gases," by John Gough. Written Dec. 2nd. 

 Read Jan. 27th, 1804. Pub. Manchester Memoirs, [2], 

 vol. I, p. 405, 1805. 



i8. "Appendix to Mr. William Henry's paper, on the quantity 

 of gases absorbed by water, at different temperatures, and 

 under different pressures." Phil. Trans., p. 274. 



1804. 



19. "System of Chemistry," by Thomas Thomson, 2nd ed., 



vol. 3, p. 316. 



20. "On the supposed chemical affinity of the elements of 



common air; with remarks on Dr. Thomson's observa- 

 tions on that subject," by John Dalton. Written June 

 1 6th. Pub. Nicholson's Jour., [2], vol. 8, p. 145. (A 

 reply chiefly to no. 19.) 



21. "Illustration of Mr. Dalton's theory of the constitution of 



mixed gases," in a letter from Mr. Wm. Henry, of Man- 

 chester, to Mr. Dalton. Written June 20th, read June 

 29th. Pub. Nicholson's Joicr., [2], vol. 8, p. 297. 



22. "On the solution of water in the atmosphere, and on the 



nature of atmospherical air," by John Gough. Written 

 July 1 6th. Pub. Nicholson' s Jour., [2], vol. 8, p. 243. 



23. " Strictures on Mr. Dalton's doctrine of mixed gases, and 



an answer to Mr. Henry's defence of the same," by John 

 Gough. Written Aug. 23rd. Pub. Nicholson' s Jour., 

 [2], vol. 9, p. 52. (A reply to nos. 20 and 21.) 



24. " Observations on Mr. Gough's strictures on the doctrines 



of mixed gases, &c.," by John Dalton. Written Sept. 

 8th. Pub. Nicholson's Jour., [2], vol. 9, p. 89. (A reply 

 to nos. 22 and 23.) 



