44 Sketching and Photography 
weighing 1 Ib. 7 oz. or in its solid leather case, 2 Ib. 12 0z., known 
at first as the Blair ‘ Bulls’-eye” and later as the Kodak ‘“ Bull’s- 
NEST OF GRIFFON VULTURE ON OPEN LEDGE. 
A guick exposure. 
eye’ taking cartridge films of 12 exposures giving pictures of 
34 in. by 34 in. With this I took the photographs which illustrate 
Colonel Irby’s “Ornithology of the Straits of Gibraltar.” Owing to 
