THE MICROSCOPE. 



37 



I took some of the scales and examined them (dry) with a 

 power of about 400 diameters, but could find nothing more than a 

 few epithelial scales. After placing some distilled water upon the 

 scales, I broke them between the cover glass and slide. Upon 

 again examining them I found a few blood corpuscles, broken down 

 epithelial cells, several pus cells and a number of small globular 

 bodies or cells, somewhat smaller than a human blood corpuscle 

 (red). These cells were of queer shape and I suspected that I had 

 the so called achorion schoenleinii, after a further examination I 

 found two and more of the bodies united like the 

 mould fungi. I reported the case to Prof. Yemans 

 J and he has since told me that by using anti-parasitic 

 ;reatment there has been an improvement. I distin- 

 guished pus corpuscles by action of dilute acetic acid. 

 The acid had no action upon the achorion Schoen- 

 leinii. See diagram. Respectfully yours, 



J. H. LOBDELL, M. D. 

 PHYTOSIS VERSICOLOR, (PIFFARd), OR PHTHEIRIASIS VERSICOLOR, 



(fox) fungus, microsporon furfur. 



Phytosis versicolor commences by the appearance of small, 

 irregular yellowish-brown spots, very slightly, if at all, elevated 

 above the surface of the skin, and covered with barely perceptible 

 scales. It usually begins upon the chest, extends gradually over 

 the whole of this region, mounts upon the neck, and descends to 

 the abdomen. It may also stretch round to the back and cover this 

 region. It never invades the face, and rarely the limbs. Phytosis 

 versicolor is said to be contagious, and it is reasonable to suppose 

 that it may be so. 



The affection is produced by the development of a fungus 

 whose spores and mycelium are infiltrated among the horny cells of 

 the epidermis. The fungus has received the name, microsporon 

 furfur, and was discovered by Eichstedt in 1846. The spores are 

 as the name implies, exceedingly small, but of varying size, and 

 uniformly round; the mycelium is sometimes simple, and sometimes 

 branched. 



TRICOPHOTOSIS. 



This includes 

 inflammation re- 

 sulting in either, 



f ■, 



I-:- 

 1 5, 



Tinea Circinata. 

 Sycosis Parasitica. 

 Tinea Tonsurans. 

 Eczema Marginatum. 

 Onyclomycosis. 



1 



From the pre- 

 j> sence of the 

 Tricophoton. 



The discovery of this fungus is probably due to Gruby who 



