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NEW YORK AQUARIUM NATURE SERIES 



MOSQUITO LARVAE: ALL-GLASS AQUARIUM. 



Tliis lectangular type of jar can be had in all the 

 smaller sizes and is the best form of the all- 

 grlass jar. For balanced aquaria, the height 

 should not exceed the -u-idth. 



through the curved sides. For smaller aquaria the ordinary 

 battery jar is as good as anything, except for the distortion, and 

 has the advantage of being cheap. Very beautiful and well bal- 

 anced aquaria can often be made with the two-quart size, but 

 these are suitable only for very small animals and few of them. 



To test the limits of the capacity of the two-quart size, the 

 writer once kept in such a jar, with plenty of weeds and in good 

 light, a carp nearly as long as the diameter of the vessel. The 

 fish continued to live in good condition for several weeks until 

 an accident brought the experiment to an abrupt end. 



On no account should the ordinary globe be used. This is 

 the unanimous opinion of all experienced aquarists. Globes are 



