. A practical treatise on diseases of the skin, for the use of students and practioners . ce examined, when innumerable clustered spores and short myceliabecome visible; the former highly refractive and resembling in theircircular and oval contours, droplets of oil. Their aggregation inclusters is distinctive of this among the other forms of cryptogamicvegetation. They measure to mm., while the myceliavary in diameter from to (Duhring). Among thelatter, sporophores are distinguishable, with contained conidia andterminal elements emerging at one extremity or the othe
. A practical treatise on diseases of the skin, for the use of students and practioners . ce examined, when innumerable clustered spores and short myceliabecome visible; the former highly refractive and resembling in theircircular and oval contours, droplets of oil. Their aggregation inclusters is distinctive of this among the other forms of cryptogamicvegetation. They measure to mm., while the myceliavary in diameter from to (Duhring). Among thelatter, sporophores are distinguishable, with contained conidia andterminal elements emerging at one extremity or the other of thespore-case. Both elements are more readily stained by eosine andmethyl-violet than those of the trichophyton or of favus. One of the strongest arguments against the claim for the identityof all the vegetable parasites is furnished by the history of this inter-esting mould. It never by any possibility invades the hairs or thehair-follicles, though it may be seen flourishing at the orifice of a 1 dAniitomie Pathol., x<. p 265, Pari*, 1875. TINEA 83. 627. Microsporon furfur. (After Kaposi.) follicular duct, aud even beneath a vigorous pilary growth upon thechest of a male subject. It avoids the light and the air; and singu-larly refuses to encroach upon certain covered portions of the body,even preferring, in its extremest development, to linger unobtrusivelyat the neck near the verge of the collar. Diagnosis.—Here, as in all the parasitic diseases of vegetableorigin, the microscope may be required to decide the diagnosis in anycase where a doubt might arise. In its simpler manifestations, therecognition of the affection is very readily assured. The location ofthe eruption, its irregular reticulations, its characteristic, yellowish orfawn-tinted shades of color due to the nature of the fungus ; and theexfoliation of the epidermis which it excites by its superficial penetra-tion of the outer layer of the stratum corneum, producing thus amealy, br
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