94 



NATURE AND THE CAMERA 



hold the sides together. The wire may be removed 

 and a batten substituted when the aquarium is to be 

 packed. When the tank is made it should be 

 smoothly lined with white oilcloth. This is easily 

 cleaned, and its bright surface reflects the light and 

 therefore prevents heavy black shadows. 



It will be noticed that when a fish is placed in the 

 aquarium, after stirring up any accessories that may 

 have been arranged, he immediately retires to the 



farthermost cor- 

 ner, out of reach 

 of the camera. 

 To prevent this 

 his range must 

 be restricted, and 

 the best way to do 

 this is by placing 

 a sheet of glass in 

 the grooves as shown in Fig. 2. The smaller the fish 

 the nearer to the front must this glass fence be put. 

 With large fish it is not safe to restrict their move- 

 ments too much. It makes them very restless and 

 frequently results in their breaking the glass or killing 

 themselves. The glass partition serves also to prevent 

 the fish disturbing the aquatic vegetation which adds 

 so much to the beauty of the picture. This subject 

 will be more fully dealt with later on. It is not 

 advisable to allow the partition to rest on the bottom, 



Fig. a. 



