To the Honourable the Secretary of the Province of Ontario. 
Sir,—i have the honour to submit to you, for the information of His Excellency the 
Lieutenant-Governor in Council and the Legislature, the following Report upon the Palzon- 
tology of the Province of Ontario, embracing descriptions and figures of the organic remains 
of the Devonian formation of Western Canada. 
In addition to the collections which, by the liberAlity of the Legislature, I was enabled 
to make from the Devonian rocks, I also examined and formed collections from various por- 
tions of the Silurian series. The description of these, however, I must in the meanwhile 
hold over, partly because of their being still incomplete, and partly on account of my own want 
of leisure. 
In addition to the collection which I have placed in the Museum of the University, I 
have also placed examples of the more typical Devonian fossils in the Museum of the College 
of Technology. 
I have the honour to be, Sir, 
Your most obedient servant, 
H. ALLEYNE NICHOLSON, 
University College, Toronto, 
October, 1873, 
