. A practical treatise on diseases of the skin, for the use of students and practitioners . t must be said, persistent and disfiguring. Shavinghas been followed in some of Kaposis cases by good results;while Roeser3 advocates the local employment of dilute tinctureof cantharides. Smith,4 of Dublin, has also reported a curious case of nodoseSWELLINGS of the shafts of the hairs, differing somewhat fromthose described above. Through the kindness of Dr. Duhring,I have been enabled to exhibit some of these hairs in Chicago,photo-micrographs of which were, at my suggestion, taken by , of
. A practical treatise on diseases of the skin, for the use of students and practitioners . t must be said, persistent and disfiguring. Shavinghas been followed in some of Kaposis cases by good results;while Roeser3 advocates the local employment of dilute tinctureof cantharides. Smith,4 of Dublin, has also reported a curious case of nodoseSWELLINGS of the shafts of the hairs, differing somewhat fromthose described above. Through the kindness of Dr. Duhring,I have been enabled to exhibit some of these hairs in Chicago,photo-micrographs of which were, at my suggestion, taken by , of this city. Here there was no fragility at the nodes,which commencing near the scalp were quite regularly displayedalong the shaft, the fracture being always internodular. The Amir. Jour, of the Med. Sci., July, 1878. « Arch, of Derm., July. 1879. » Annal. de Derm, el de Syph., 1877-78, pp. 185 et seq. * Brit. Med. Jouni., May 1, 1880. ATROPHIA PILORUM PROPRIA. 339 spherical swellings along the shaft were also pigmented in abrown hue, and these, contrasting with the non-pigmented color. Tricliorexis nodosa. (After Schwimmer.) of the unaffected portions of the shaft, gave the hairs a singularlycheckered appearance. ]So parasite is discernible iu any ofthe specimens. 340 DISEASES OF THE SKIN. Piedra ense is described as still another condition of the hairs in which d ..node-like masses are attached to or surround the hair describes these as containing masses of spores. In asingle case, thai of a young girl Bent to me by my colleague, , of the Eye and Ear Infirmary, I discovered there werenumerous, jet-black, horny, and dense spherical masses attachedto the liaii-sot the eyelashes of each lid of both eyes. I \v;isunfortunately prevented from securing some of those hairs formicroscopical examination. Canities. •ees Canities is that condition of the hairs in which they become in various degdecolorized as the result of atrophy of their pigment. Symptomatolog
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