PAEASITIC PLANTS. 257 



0'06'" in length, exactly resembling Leptothrix buccalis, from 

 which they are only distinguished in that they are always 

 isolated, are not bound together by a fine granular material, and 

 are never situated on epithelial cells. Although often very 

 numerous, they are still not so abundant as Trichomonas vagi- 

 nalis, and are never met with like these without the coexisting 

 presence of mucus-corpuscles. 



Page 132. In his 'Clinical Reports' during 1853-4, pp. 

 69 71, Fuchs mentions having found a fungus, in Bronchitis 

 maligna, in the sputa and bronchi. After written communications 

 he considered it to be the fungus treated of before as Leptomitus 

 Hannoveri. 



Page 162. Correction and appendix to the notice given of the 

 parasitic fungus mentioned by Fuchs. Through an oversight on 

 my part it is said that Alphi are " white spots on the skin-." I 

 should have written white pustules in or on the skin. I shall 

 seek to make this error good, because I speak more at detail now 

 of Fuchs' s fungus. The Alphus sparsus = scattered meal- scab = 

 Pustulte scrofuloste == Ecthyma scrofulosum appears especially on 

 the trunk and superior extremities, seldom on the face ; solitary, 

 discrete, light gray pustules, never met with on hairy parts ; which 

 raise themselves on isolated, round areolse of the size of peas or 

 beans; which are hard, firm, nearly half spherical, and buried in 

 the pale livid cedematous halo ; they are filled with a yellowish 

 fluid, and from a pin-prick slowly flows out a fluid which resembles 

 a mixture of chalk powder and water. They dry up without 

 breaking into isolated round crusts, increasing to the size of a 

 groschen-piece, which raise themselves over the skin and become 

 easily torn off by the clothes, on which a circular scrofulous ulcer 

 remains behind. 



According to Fuchs this form of eruption is confined to 

 scrofulous persons, and is contagious like favus, although the 

 attempts at its inoculation by Fuchs failed. Through conditional 

 modifications of the constitution, simple Eczema, Impetigo, 

 Psydracia fiavescens, Ecthyma, Acne, &c., may become very 

 like Alphus externally. 



That the deeper layers of the skin are involved is probable 

 according to Fuchs, but has not been proved. The crust 

 consists of fungus threads which in some measure resemble those 

 of favus ; they appear sometimes to be increased by epidermic 

 scales, and occasionally assume a pale greenish colour. 



This disease becomes chronic, has an indeterminate dura- 



17 



