TEICHOPHYTON SPOHULOIDES. U9 



longer liquid, but pultaceous, especially at the points of the 

 plicated tufts. Water turned it milky. 



When magnified 400 times, this mass consists of innumerable 

 round or regularly oval little bodies, which refract light strongly; 

 they are 0-013'" long, and the smallest even shows a dot or spot 

 in its body, containing two little vesicles, one placed inside the 

 other. The one lies in the enclosure of the other, and rises out 

 of the latter a little. The more developed forms lie close to the 

 skin of the head. The form of the exterior vesicle is a depressed 

 round or oval. Both vesicles are transparent, like a drop of 

 clear water. On adding water a molecular motion is observed, 

 which is at once destroyed by corrosive sublimate, which causes 

 the vesicles to shrink. By drying, the vesicles may be obtained 

 in groups of small heaps around the hair, hanging together 

 without adhering directly together. They grow distinctly, and 

 the ventral vesicle is perhaps only the germ to a new molecule. 

 Many "vesicles contain 2 3 smaller vesicles. If there are 3, 

 they are found to lie on the longitudinal axis ; if only 2, at the 

 two poles of the ellipse. The larger ones show no molecular 

 motion. They never range themselves side by side, nor do they 

 sprout out cells like the ferment-fungus, from which they also 

 differ in size and their relation to light. These granules form 

 with the hair the principal part of these masses, and are even 

 found in dry ones, though they are shrivelled up. According to 

 W r alther they are independent vegetable formations. The hair- 

 bulbs and follicles were always healthy. The fungus could not 

 be transferred by inoculation. It is not met with in the inner 

 part of the hair. It is to be regretted that Von Walther does 

 not illustrate his views by drawings. 



Appendix. I may be permitted to add here a few words 

 more concerning the plica polonica which do not directly bear on 

 the subject, and yet may be found worthy of the attention of the 

 medical man. Von Studzieniski, in a work of which I shall have 

 more to say further on, has with a certain patriotic indignation 

 about the insinuation of the little amount of cleanliness com- 

 monly attributed to his countrymen, tested the views on the 

 nature of the plica polonica, lues plicosa, or lues trichomatica, and 

 asserts, that he has come to the final result, that the disease is 

 constitutional, standing in close connection with the normal 

 process of cornification of the body, and representing merely an 

 exaggerated activity of this process. He carries out this theory, 



