180 PROCEEDINGS OF THE CANADIAN INSTITUTE. 



Botanical Society branches and cones of (1) P. rubra taken from 

 a group of trees growing on the railway banks, near Tynehead 

 Station, in Midlothian, at an altitude of about 800 feet. The trees 

 had then, (13th Janitaiy, 1870), been about fifteen years planted, and 

 were from 12 to 18 feet in height; (2). P. rubra, from a group of 

 trees gi-owing in drained and improved ground, which must once 

 have been marshy, in Dunmore Park, near Stirling, Scotland, not 50 

 feet above high-water mark, seemingly about the same age as the 

 last, and from 15 to 20 feet in height ; (3). P. alba, from near Tyne- 

 head Station ; (4). P. nigra, from Dunmore Park. 



In addition to acknowledgements for specimens already made in 

 this paper, my best thanks are due to Mr. John MacAloney, of 

 Halifax, who collected for me the several forms growing on the 

 shores of the Bay of Fundy ; to Mr. W, S. Calkin, B.A., now of 

 Cornell University, who, whUe an undergraduate of Dalhousie 

 College, obtained those of the district ai'ound Truro ; and to Mr. 

 S. J. McLennan, B.A., who made similar collections around Sydney 

 Harbour, Cape Breton. 



