FISH PHOTOGRAPHY AT HOME 191 



plate.) The light should be moved slightly to one side, 

 so that it still falls on the shrimp, but not into the 

 lens. A negative taken with the light in this position 

 would give the result as shown in the second illustra- 

 tion on the same plate. Next, without moving the 

 light, a sheet of ground glass should be placed between 

 the light and the animal. The crustacean is now illu- 

 minated by a combined transmitted and reflected light, 

 and the resulting photograph suggests transparency. 

 As an illustration of how parts of this same crustacean 

 can be photographed without its being moved, a higher 

 power was now put on the camera, and a photograph 

 taken of the part marked x, the result of which is 

 shown in the top illustration on the next plate. The 

 microscope can now be slipped into position and the 

 part marked x x magnified up, as shown in the lower 

 illustration on the same plate. 



I have mentioned various tanks and apparatus, 

 but in addition to these, not infrequently I have 

 built a special tank in order to obtain a single 

 photograph. But if asked what apparatus I would 

 recommend to anyone starting fish photography, I 

 would say, construct a tank on the principles of the 

 pond. 



On my next photographic holiday, I intend to take 

 with me a wooden tank four feet square and two feet 

 deep, with two opposite sides of plate glass. When it 

 is desired to photograph a fish by a front light, I shall 

 be able to use this box-like tank, as already described. 



