238 SUMMARY OF CURRENT RESEARCHES RELATING TO 



iv. must, 17*86 per cent, glucose, 13 -43 per cent, alcohol, 11*7 per 

 cent, acid ; v. (apiculatus) must, 19 35 per cent, glucose, 1-34 per cent, 

 alcohol, 0*495 per cent, acid; vi. 19 -35 per cent, glucose, 5 "78 per 

 cent, alcohol, 0*819 per cent. acid. The quantities of glucose destroyed 

 by the yeasts in the production of alcohol, or in their own maintenance, 

 were: i. 11-21 per cent.; ii. 84-4 per cent.; iii. 31*25 per cent.; 

 iv. 90-4-96 • 6 per cent. ; v. 15 per cent. ; vi. 7 1-9 * 6 per cent. 



New Variety of Ray Fungus.* — Dr. B. Sohiirmnyer describes a 

 variety of the ray fungus under the name of Oosporus proteus or Strepto- 

 tlirix proteus, which was isolated from the astragalus and os calcis of a 

 man supposed to be suffering from tuberculosis. The morphological 

 appearances were very polymorphic, and varied with the medium, true 

 branched forms and spores being found only in old liquid cultures and 

 in the mouse. When young the shorter elements were motile. The 

 parasite was easily stained, was strongly aerobic, but also a potential 

 anaerobe. The optimum temperature was 37°. It was cultivated on 

 glycerin- agar., glycerin-gelatin, gelatin-bouillon, and on potato. The 

 growth was often yellow or yellowish, and old fluid cultures became 

 brownish. Gelatin was liquefied. It formed spores (oidia) and chlamydo- 

 spores. 



Sections of the diseased tissue presented the histological appearance 

 of sarcoma. In these all the stages of growth and club-shaped elements 

 were observed. Infected mice died from septicaemia, the anatomical 

 appearances being those of pseudo-tuberculosis. 



Mycorhiza of Tipularia unifolia.y — Julia B. Clifford has studied 

 the anatomical and physiological relations between this orchid and its 

 mycorhiza. The principal anatomical features in the roots attacked are 

 the absence of a root-cap, the development of a many-layered epidermal 

 tissue, and the formation of a special sheath from the external la} er of 

 the cortex. The general organisation of the fungus, and its relation to 

 the host-plant, agree with those of the mycorhiza of Corallorhiza. The 

 hyphee in the epidermal tissue constitute the vegetative mycele, which 

 sometimes branches. These traverse the root-hairs and penetrate the 

 soil, constituting the absorbing organ of the mycorhiza. Starches and 

 other carbohydrates are taken from the host-plant, and proteids are 

 formed from these and the products brought from the soil. 



Blastomycetic Dermatitis. J — Mr. L. Hektoen reports a case of 

 chronic dermatitis caused by a pathogenic blastomycete. Sections having 

 demonstrated an organism, cultures were made from scrapings of the 

 tissue, and from these was isolated a blastomycete, recognised by its 

 morphological and other characters. In size it varied from 7 to 12 /x, and 

 in shape was round or oval. Budding forms were frequent at all stages, 

 and vacuolatiou of the cells was a prominent feature. The organism 

 grew well on all the usual substrata, but did not ferment saccharated 

 media. In two out of fourteen experiments on animals the organism 

 was found to have disseminated itself throughout the body. In one of 

 these instances the organism was introduced by intravenous injection. 



* Centralbl., B.,kt. u. Par., I* Abt., xxvii. (1900) pp. 49-61, 101-7 (9 fig-.). 

 t Bull. Torrey Bot. Club, xxvi. (1S99) pp. 635-8 (1 pi.). 

 X Jouru. Expcrim. Med., iv. (1899) pp. 261-78 (4 pis.). 



