BY TIIOS. STEEL. 103 



til 3 year they moAe about very freely at night, crawling all over 

 the accessible parts of the vivarium in which they are confined, 

 and in the day time hiding away in crevices and beneatli lumps 

 of earth or pieces of wood. 



The kind of vivaria in which I have been most successful in 

 keeping my specimens alive, consist of ordinary glass jam jars 

 having metal lids, which slip or screw on not quite air tight, 

 These are filled with lumps of moist ea-rth and odd pieces of rotten 

 wood. An arrangement such as this is very convenient for 

 observation, and allows of taking out the contents when desired 

 for examination, without injury to the specimens. 



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