NATURAL SCIENCES OP PHILADELPHIA. 261 



of sporular bodies, single, double, or in sliort chains of a dozen or 

 more. They measure about the ^i^y of a line in diameter. The 

 fungus is a Torula or Oidibira, and resembles that found in Aptha. 

 Perhaps the disease in the mice is the result of feeding upon arti- 

 cles imbued with adherent portions of apthous matter from the 

 mouths of children, and perhaps also the latter may become af- 

 fected from diseased mice contaminating food or drink used by 

 the children. 



Dr. LeConte remarked that he had found in his father's house 

 in New York, scA'eral years ago, a mouse exhibiting the same 

 fungoid disease, and in the fungi were found specimens of a 

 coleopterous insect of the genus Lathridius. The doctor also 

 remarked that in a few days a cutaneous eruption appeared on his 

 own person, which seemed to have been derived from the fungoid 

 disease of the mouse. 



April 29. 

 The President, Dr. Ruschenberger, in the chair. 

 Twenty-seven members present. 



Augustus R. Hall, Kingston G. Goddard, M.D., and John J. 

 Macfarlane were elected members. 



On report of the committees the following papers were ordered 

 to be published : 



