254 Journal oj the Asiatic Society of Bengal. [June, 1913. 
out a trace of violet. Purple individuals seemed to be more 
numerous at the end of October than at the beginning of the 
month, and both of the pair found together belonged to this type. 
It is possible that the purple colouration, which is confined 
to fully mature individuals of both sexes, is periodical. only 
being adopted at the approach of the breeding season. 
Norge on THE Poon INHABITED RY T'yphlocaris. 
One of us has recently received the following note from the 
Rev. S. H. Semple of Tiberias. It is dated July 12th, 1913. 
‘* The doubt as to the source of the abundant water-supply 
