and nowhere else on the route, and three of them only in a space 

 of ten or twelve miles in Norfolk County. 



Among the trees which have been reported from this general 

 region by others, or are more or less common in about the same 

 latitude in the eastern United States, but were seen only once or 

 not at all in Ontario, are the following: — Picea, Juniperus 

 Virginiana* Juglans, Ostrya, Quercus borealis (and other red 

 oaks), Celtis, Moms, Platanus, Liriodendron, Magnolia acuminata, 

 Sassafras, Tilia, Cornus florida, and Nyssa. (Where the generic 

 name only is given it means either that there is only one species 

 in the northeastern states, or that the whole genus is scarce in 

 southern Ontario.) 



Some statistics of population and agriculture compiled from 

 the Canadian census of 1921 correlate very nicely with the ob- 

 served features of the vegetation. 



In Kent, Essex, and Welland Counties, representing the level 

 lake plains, there were 113.3 inhabitants per square mile, 58.5% 

 of them living in incorporated towns and cities, the largest of 

 which are Windsor, Niagara Falls, Chatham and Welland, which 

 together include over half the urban population. The popula- 

 tion increased 58.1% between 1901 and 1921, doubtless on ac- 

 count of the growth of the manufacturing cities on the border. 

 Farm woodlands constituted 7.5% of the area, pasture 20.3%, 

 and field crops (including hay) 53.8%. The average value of 

 farm land was $78.50 per acre. 



The undulating country with deciduous forests is represented 

 by Elgin County, which had 62.4 persons per square mile, 49.7% 

 of them in incorporated places, by far the largest of which is 

 St. Thomas, the county-seat. Outside of St. Thomas the popu- 

 lation decreased a little between 1901 and 192 1. Farm wood- 

 lands covered 9.7% of the area, pasture 33.9%, and field crops 

 43-0%- The farm land was valued at $44.60 per acre. 



Taking Oxford, Norfolk and Haldimand Counties to represent 

 the white pine country, we find that they have 50 inhabitants 

 per square mile (a decrease of 4.4% in twenty years), 37.1% of 

 them in incorporated places. The agricultural statistics do not 

 differ much from those for Elgin County, except for having less 

 pasture and a little more crop land, but possibly the parts of 



*See Torreya 12: 150. 1912; also Dodge, Rep. Mich. Acad. Sci. 16: 140. 

 1915. 



