1 1 8 Photography for the Sportsman Naturalist 



paper. This will not prevent it from exploding 

 when the trigger is pulled, but will protect it from 

 the dew, which would otherwise dampen it to 

 such an extent that it would not ignite. The 

 slide of the plate-holder must always be replaced 

 before daylight, otherwise the plate would be 

 overexposed, besides giving a conglomerate pic- 

 ture of foliage showing through the deer's image. 



If one is ingenious enough, an arrangement of 

 strinsrs can be made that will release the shutter 

 at the same time that it fires the flash gun, thus 

 obviating the necessity of leaving the plate ex- 

 posed. 



This method of flash-light photography is some- 

 what uncertain, but often gives good results. Mr. 

 Shiras of Pittsburg has done some really remark- 

 able work by both of these methods, and where it 

 has once been done it certainly can be repeated. 



A considerable amount of flash powder must be 

 used, especially in the former method, for the dis- 

 tance and space to be illuminated are considerable, 

 and it is remarkable how much more light is ab- 

 sorbed in the open than in a confined space, such 

 as a room. The proper amount will be ascer- 

 tained after one or two experiments. 



These methods of forcing the animal to photo- 

 graph itself are often productive of astonishing 

 results. Once a friend of mine had fixed his ap- 

 paratus at nightfall, and upon examining it in the 



