50 JoTJRlSrAL OF THE MiTCHELL SoCIETY \^Augilst 



low-cut shoes suffered more than other people. Only the females 

 were observed to bite, but the males were also noted to come 

 around a sleefting child when protected with mosquito netting, 

 and to perch on the netting as if they also wished to bite. l!^one 

 of this sex, however, was found with the bodies distended with 

 blood. The sexes were present in about equal numbers. 



Occasional specimens of this species have been taken in the 

 past, and in 1910 they were common, increasing vastly in 

 numbers in 1911. ISTow, what Avas the cause of this ? I sur- 

 mise that the series of mild ^vinters preceding 1911 was one 

 cause why this southern species got such a foothold. Another 

 reason, I believe, was that owing to the drought, the rain-water 

 barrels used by negroes stayed undisturbed for several weeks 

 with just enough water in them to keep them from falling 

 apart, and as, of course, no water was drawn from them and 

 none ran in, the mosquitoes had an excellent opportunity to 

 breed imdisturbed, and it takes a very little water to supply 

 breeding places for thousands of these little pests. 



Some Records of Incipient Fern Growth in Carboniferous 

 Time, Collier Cobb. 



Race Preservation^ Geo. W. Lay. 



Notes on the Larvae of the Marhled Salamander, E. W. Gudger. 



Larvae II/2 to 214 inches long, with external gills, have been 

 taken in brooks in the college park for several years past. This 

 spring some thirty or forty were taken in a muddy pool in the 

 same park. When caught these were nearly colorless, but when 

 exposed to the light in aquaria set before windows in the lab- 

 oratory they very quickly became pigmented. These were first 

 thought to be the young of the common salamander, which had 

 retained their gills over winter, but discussion of the paper 

 elicited the interesting information from Mr. C. S. Brimley 

 that the Marbled Salamander lays its eggs in the fall, these 

 are hatched and the larvae retain their gills over winter, losing 

 them in the late spring. Some kept by the writer for a month 

 now show only stumps of these structures. 



