1899J MICROSCOPICAL JOURNAL. 287 



been able to make preparations which definitely stain the 

 Plasmodia in the mosquito's body. He further states that 

 the parasite of Texas fever and oth,er fevers of Africa and 

 other countries may be conveyed by other insects. 



Staining the Capsules of Friedlander's Bacillus. — By 



Dr. J. J. Curry, (Jour. Exp. Med., IV., No. 2, p. 169). 

 For staining- the capsules, both in cultures and in cover- 

 glass preparations made from the organs, the following 

 method was used : 



1. Cover the preparation (prepared without contact 

 with water) with glacial acetic acid for a few seconds. 



2. Wash off the acetic acid with a 1-per-cent solution of 

 potassium hydrate. 



2. Stain with aniline-gentian-violet solution for one min- 

 ute without previously washing off the potash solution. 



4. Wash off excess of stain quickly in water, dry thor- 

 onghly with filter-paper and over low flame, and mount the 

 balsam. 



If the specimen is stained too deeply it may be decolor- 

 ized by washing lightly in ^-per-cent solution of acetic acid. 



HEDICAL MICROSCOPY. 



Tumor. — The committee subjected to microscopical ex- 

 amination the tumors from the scalp and the larger tumors 

 of the skin of other regions in the well-known case of 

 Mike Kelly, of Bellevue Hospital. These growths had all 

 shown substantially the same characteristics, viz., that of 

 a highly cellular fibroma, somewhat resembling fibro-sar- 

 coma, but having a blood supply which was hardly suffi- 

 cient for a tumor of the latter class. In the small nodules 

 from the small intestine the pigment had been found lyino- 

 between the peritoneal and muscular coats, and not at all 

 within the cells of the tumor growth proper. These 

 tumors had been slightly different in some respects from 

 those on the external surface of the body, but essentially 

 the same in structure. They contained a good deal of in- 

 voluntary muscle, apparently derived from the coats of the 



