Manchester Memoirs, Vol. Iv. (191 1), No. 5. 21 



25. "Atmospherical air not a mechanical mixture of the 



oxigenous and azotic gases, demonstrated from the specific 

 gravities of these fluids," by John Gough. ^Vrilten 

 Sept. 5th. Pub. Nicho/sofi's Jour., [2], vol. 9, p. 107. 



26. Letter to the Editor from Mr. William Henry in reply to 



Mr. Gough. Written Sept. 13th. Pub. Nicholson^ s Jour., 

 [2], vol. 9, p. 126. (In reply to nos. 22 and 23.) 



27. " Reply to Mr. Dalton on the constitution of mixed gases," 



by John Gough. Written Oct. i6th. Pub. Nicholsoiis 

 Jour., [2J, vol. 9, p. 160. (A reply to no. 24.) 



28. "Observations on Mr. Gough's two letters on ujixed 



gases," by John Dalton. Written Nov. 15th. Pub. 

 Nicholson^ s Jour., [2], vol. 9, p. 269 (in reply to nos. 25 

 and 27). 



29. " Further observations on the constitution of mixed gases," 



by John Gough. Written Dec. 13th. Pub. Nicholson's 

 Jour., [2], vol. 10, p. 20, 1805. 



1805. 



30. " Remarks on Mr. Gough's two Essays on Mixed Gases, 



and on Professor Schmidt's experiments on the expan- 

 sion of dry and moist air by heat," by John Dalton. 

 Read Oct. 4th. Pub. Manchester Memoirs, [2], vol. r, 

 p. 425 (a reply to nos. 16 and 17). 



1806. 



31. "System of Chemistry," by John Murray. Vol. 2, pp. 48- 



53, and note E. 



1807. 



32. "System of Chemistry," by Thomas Thomson. 3rd ed., 



vol. 3, p. 440. 



33. "On the Chemical composition of the Atmosphere." 



Works, vol. 8, pp. 252-255, by Humphry Davy. 



