50 



NEW YORK AQUARIUM NATURE SERIES 



TEIir.ARIUM IN A liOUND AQUAIUUM JAR. 



Suitable for small salamanders, frogs and 

 some turtles, land snails, etc. 



be kept moist but not sloppy, with frequent watering. Mosses, 

 liverwort and semi-aquatic plants, such as may be obtained in 

 any wet woodland, will grow well and make an attractive envir- 

 onment for the animal life. It is usually advisable to sink a 

 shallow dish to the level of the earth in one corner of the terrari- 

 um, as some animals, such as turtles, frogs and salamanders, 

 may find it necessary to enter the water occasionally. Such a 

 terrarium should be in a good light and should be placed accord- 

 ing to the suggestions already given for the aquarium. It should 

 be guarded in a similar way from draughts. It is often advis- 

 able to cover the moist terrarium w4th a plate of glass which will 

 prevent evaporation of the water and will keep the enclosed at- 

 mosphere at the right point of saturation. In such case the 

 moisture will often condense upon the cover and sides of the 

 receptacle and run back to the bottom. Oxygen for the respira- 

 tion of the inhabitants is provided, as in the aquarium, by the 

 plant life, and in turn the animals provide carbon dioxide for the 

 plant life. The removal of the cover for occasional feeding or 

 cleaning will sufficiently renew the atmosphere, if necessary, but 

 if properly balanced no such renewal is required. If mold tends 



