THE CAMERA IN BOTANICAL WORK. 3 



if you use a Watkin's or a \\\vnne's exposure meter, and expose 

 the meter in the shadow of the body. As the work is done out 

 of doors in the sunshine and the specimen is only shielded by the 

 thin muslin and tissue paper, the exposure, even with the ray 

 filter, is very short, compared with studio work. 



Fig. I. A white muslin screen shields the flower from the wind and 



softens the light. 



Orthochromatic plates or films must be used, and as the prints 

 should be colored, use the ray filter in all cases, except in photo- 

 graphing blue, white and purple flowers. 



The color screen gives a lighter print of the leaves and flowers. 



