SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. 33 
hair) ; dises of intermediate dorsal segments with inconspicuous 
but long hairs; ventral segments with white marginal fringes; 
antenne stout, black, the flagellum dark brownish beneath; 
joints much longer than wide, fourth considerably longer than 
third; malar space broader than long, but not greatly so; 
labrum shining, with a swelling on each’ side of the middle; 
mesothorax closely and strongly punctured, with shining spaces 
in the middle anteriorly and posteriorly; prothorax laterally 
pointed, but not spied; metathorax truncate, the base with 
a series of large pits separated by ridges; legs slender; abdo- 
men shining but well punctured. 
(To be continued.) 
A DERMOID CYST 
BY C. A. WHITING, SC. D., D. O. 
A Dermoid eyst, which was removed from a femlae patient 
47 years of age, in a hospital in this city, was recently brought 
to me for examination. Its weight was 142 grams, or about 
3d ounees, and its greatest length was 311% e.m. (seven inches), 
its breadth being 744 e.m. (three inches). The tumor was lo- 
eated in the pelvis and involved both the fallopian tube and 
the ovary, on the right side. The latter was enlarged to twenty 
times its normal size. This enlargement was partially due to 
eysts, enclosing a serous fluid, and in part to the formation of 
new tissue. The new tissue was connective tissue composed 
of embryonal cells intermingled with numerous cells of striated 
muscular tissue. The tumor consisted of two well defined 
parts. 
The smaller part, which was about 11 e.m. (4% inehes) long, 
314 em. (1% inches) wide, and 114 e.m. (34 of an inch) thick, 
was composed of epithelium and connective tissue cells en- 
closing fatty globules, and detritus resembling disintegrating 
bone. This mass was made coherent by a quantity of long, 
heht colored hair which permeated every part of it. Some 
ot the hairs were more than two and a half feet in length. 
They appeared to rise in most eases from hair follicles, which 
presented no essential variation in structure from the normal 
type. Among these a few well developed sebaceous glands 
were found. 
The larger part of the tumor was nearly globular in form, 
about 6 em. (24% inches) in diameter and consisted of bone 
and eartilage as well as fibrous connective tissue, and epithelial 
tissue, enclosing fatty detritus. In this portion well developed 
