American Big-Game Hunting 
saving considerable weight. For this lens I 
constructed a camera on a different principle, 
as the length was too great to carry con- 
veniently in the form of a rigid apparatus. 
This in turn I have displaced with a Dall- 
meyer telephoto lens, mounted in aluminum, 
which I consider a marvelous instrument. 
I have not succeeded in obtaining any 
pictures with it as yet. The difficulties of 
using it are in some respects greater than 
with the other lenses, as it requires to be 
focused on the object. I have, however, 
designed a camera with the ground glass 
fastened rigidly in the top, and with a mov- 
able mirror which permits of the focus being 
obtained without removing the roll holder. 
This camera, when extended, is thirty inches 
long, and when packed for carrying is re- 
duced one half. 
It is home-made; but, if constructed by 
experienced workmen, I believe would very 
satisfactorily fill the conditions necessary for 
a game-camera. The weight and size, to- 
gether with the necessity of focusing, require, 
however, some kind of a support. I believe 
that a pair of adjustable legs, with a universal 
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