274 Photography for the Sportsman Naturalist 



himself if he will make two negatives of the 

 same tree, one on the ordinary plate without 

 the " backing " and the other on the non-halation 



Spruce Cones. 



or the backed plate. If we use the plate combin- 

 ing the qualities of non-halation with those of 

 orthochromatism, we will obtain the best possible 

 results. 



