A LIST OF THE BOMBAY BUTTERFLIES IN THE SOCIETY'S COLLECTION. 135 



the close of the rainy season, though never so plentiful as the next. It 

 wanders little, and I have watched a fiue male in the garden day after day, 

 basking on the same bush and sucking the same flowers, fiercely chasing 

 all rivals away, until it was old and faded and broken, and finally disap- 

 peared. I do not think they live much over a week, but this is a difficult 

 point to settle, because in captivity there are unnatural conditions which 

 may lengthen as well as shorten an insect's life. 



38. 77. bolina.- — This is the least common of the three species in 



Bombay. In collections from Malabar, it is, I think, the commonest. 



Perhaps it is more a denizen of the jungle and rarer in gardens. Like 

 the others, it appears during the latter half of the monsoon and for a short 

 time after. 



A NEW SPECIES OF ALGA 

 CONFERVA THEBMALIS BIRDWOODll 



(With an Illustration.) 



DISCOVERED AMONG THE HOT-WATER ALG^E FROM VAJRABAI 

 EXHIBITED BEFORE THE BOTANICAL SECTION ON 15™ MARCH 1886. 



By Surgeon K. R. Kirtikar, I.M.D., 

 2nd Surgeon, J. J. Hospital, 



Acting Professor of Anatomy, Grant Medical College. 



I visited the hot-water springs of Vajrabai near Bhiwandi in the 

 Thana Collect orate a fortnight ago. The place has been described in 

 the Indian Antiquary of March 1875 (page Q6) by Mr. Sinclair, of 

 the Bombay Civil Service, one of our able co-adjutors and generous 

 contributors in the Zoo'ogical Section. The springs occur, he says, 

 in or near the bed of the Tan sa River at the village of Wadouli, about 

 twelve miles due north of Bhiwandi. Those at Akloli and Ganesh- 

 puri have a temperature of about 100° F. The water is stored, as it 

 bubbles up from the underground springs, in a couple of big basins 

 built of black basaltic stones, about eight feet by twelve in dimensions 

 and four feet deep. The water bubbles up hot through circular holes 

 cut out at the bottom of the basin. It has a sulphurous taste and smell. 

 It was analysed by Drs. Giraud and Haines in January 1855, but no 

 note seems to have been made of this quality of the water. The analy- 

 sis is given in the Transactions of the Medical and Physical Society of 



