68 ROYAL SOCIETY OF CANADA 



Platanus occidentalis. 



A specimen of this wood was sent to me by Prof. A. P. Coleman, of 

 Toronto, in 1893. It had been obtained a few years previously by Mr. 

 Spry, C.E., from a locality east of the Don Eiver, near Jail Hill. It was 

 found at a depth of thirty or forty feet below the surface, and formed 

 part of a trunk nineteen inches in diameter. Upon examination the 

 structure was found to be much compressed, and by reason of this fact, 

 joined to somewhat extensive decay, many of the details of structure were 

 lost. It was, however, possible to refer the wood without much doubt 

 to Platanus occidentalis. 



UlmUS AMERICANA. 



Although Uhnus racemosa has already been recorded from the Don,^ 

 this is the hrst instance of U. americana having been found. ^ It was 

 obtained by Prof. Coleman of Toronto, from the Don valley, at what he 

 has designated "Convicts' Cutting." The material is well preserved, and 

 readily admits of reference to the species indicated. 



PiCEA SITCHENSIS. 



A badly decayed specimen of wood from "Convicts' Cutting," near 

 Toronto. The structure is so badly disorganized as to make reference to 

 the species a matter of much doubt. The wood is undoubtedly a Picea, 

 and appears to approach closely to P. sitchensis,^ but this view can only 

 be accepted as a provisional one, and in determining the probable climate 

 of the region should not bo taken into consideration. 



FllAXINUS QUADRANGULATA (?). 



The only specimen of this wood so far recorded was obtained from 

 the Interglacial of the Don, in 189H, by Prof Coleman, of Toronto.* The 

 structure of the wood was found to be greatly altered, so that while the 

 generic characters could be ascertained without ditiiculty, the species was 

 a matter of considerable doubt. It was, however, referred to F. quadran- 

 gulata as the nearest of existing species. 



QUERCUS OBTUSILOBA. 



The only oak so far recorded from the Pleistocene was obtained by 

 Prof. Coleman from the same locality as the last species.'' The structure 

 had sutiered great alteration, and the species could not be ascertained 

 with certainty, but it has been referred provisionally to the nearest exist- 



1 Bull. Geol. Soc. Anier., i., 32:3. 



2 .Journ. Geol,, iii., 635. 



* Ibid., iii., 6:^,5. 



* Amer. Geol., xiii., 94 ; Journ. Geol., iii., 035. 

 ' Ibid., i iii, 95; Ibid., iii., 035. 



