

PLATE I 

 RINGDOVE. Columba p alum bus 



April \2.th, 1894. Tweedsmuir. This nest was built in a large spruce 

 fir-tree in a plantation on the hillside. I got my camera set up half 

 way out on a large branch, and had some difficulty in focussing it, as it 

 was so dark in the middle of the tree. Using a small diaphragm and an 

 instantaneous plate, I thought I would be quite safe if I gave it forty seconds ; 

 but I had to expose it for nearly two and a half minutes before I could get 

 any detail. The great difficulty was to keep perfectly still for that length of 

 time, as the slightest movement blurred everything. 



139 



