THE 



CANADIAN 



NATURALIST AND GEOLOGIST. 



Volume II. NOVEMBER, 1857. Number 5. 



ART. XXVIII.— 0?^ Ozone. By Charles Smallwood, M.D., 

 L.L.D., Professor of Meteorology in the University of McGill 

 College, Montreal, Canada.* 



Mr. Chairman^ 



It would be unbecoming in me as forming a part of the depu- 

 tation to Albany last year, for the purpose of inviting the Asso- 

 ciation to meet at this place, were I not to take advantage of the 

 present moment, to greet you, gentlemen Members of the Ame- 

 rican Association, with a cordial and hearty welcome, and I need 

 scarcely add, that the like sentiment inspires the whole of the 

 inhabitants of this city. 



Until the present time, these Annual Meetings have been con- 

 fined to the United S^tates alone, (although not exclusively Ame- 

 rican,) and separated only by an imaginary boundary, which has 

 now been removed, for we here meet, united as one family, having 

 one common object in view, — " the Advancement of Science," 



* This and the following paper were read at the Annual Meeting of 

 the American Association for the Advancement of Science, Montreal, 

 August, 1857. 



