XXX Anmial Ret'ort of the Council 



He was elected a member of this Society in i860, and was 

 for many years a constant attender at the meetings, serving as 

 president at various times of the Photographic, Microscopical 

 and Natural History section. He was a member of the 

 Manchester Photographic Society almost from its commence- 

 ment in 1855, and was one of those who founded the Astronomical 

 Society of Manchester. His most important publication was a 

 volume entitled "Photography: Its History, Processes, Ajjpa- 

 ratus and Materials," first edition, 1892; second edition, 1899, 



lis deal 

 W. B. 



By the death on December 6th, 1912, of Mr. Arthur 

 McDouGALL. B.Sc, the Society has lost one of its oldest 

 members and a very faithful friend. He was a son of the late 

 Mr. Alexander McDougall, who came early in life from Scotland 

 to settle in Manchester, and became a member of the Society in 

 1844. 



Mr. McDougall studied chemistry at the Owens College under 

 Professor Roscoe, graduated B.Sc. at the University of London, 

 and then worked for some time in his father's laboratory on the 

 products to be obtained from coal tar, with the result that many 

 new compounds were introduced to commerce. Afterwards, 

 along with his four brothers, he founded the City Flour Mills, 

 with which he remained connected to the end of his life. 



Mr. McDougall soon made his knowledge of chemistry 

 available in connection with his daily work, and he investigated 

 in particular the mineral constituents of wheat. But his energy 

 found vent in other directions, and he occupied much time in 

 working out improvements in the purification of coal gas, and 

 invented the " .McDougall furnace," designed for recovering the 

 sulphur from the iron oxide employed to remove sulphuretted 

 hydrogen from the gas. In 1S9S Mr. McDougall turned his 

 attention to the ])roblem of preparing nitric acid synthetically. 



