THE IDENTITY OF BACTERIUM FtETIDUM WITH SOU. COCCI. 149 



Old l.uies between Three Cocks and the Black Mountain ; A. Ley. 

 — Var. Borreri. Very abundaTit and well marked on the Black 

 Mountain; A. Ley. — .V. dilatatiim Desv, With almost concolorous 

 scales, near Nantgwyllt ; A. Ley. P. — .V. Oreopteris JJesv. 

 Elan Valley, lower part, near Nant-gwyllt; A. Ley. 



Polypodium vuhjare L. F. ; but apparently not common in 

 South Breconshire. — P. Phegopteris L. Glen by the waterfall, 

 Coel Bren, fine ; mountain sides in the Honddu Valley, small ; 

 A. r.ey. Slwch Lane, near Brecon; Miss Fryer. By a mountain 

 stream, Pen-y-wyllt. — P. iJryapteris L. With the last in the 

 Honddu Valley, and I believe at Coel Bren ; A. Ley. Slwch Lane, 

 near Brecon; Miss Fryer. Vale above Ehymney Bridge Station, 

 sparingly. — P. liobcrtianum Hoffm. Among loose stones at base 

 of the Tarens in Honddu Valley, e. y., at Taren r' Esgob ; A. Ley. 



Osmunda reyalis L. F. H. Jones, Top. Bot. ed. ii. Not seen 

 by Eev. A. Ley or myself. 



Botrychium Lwiaria Sw., Erwood ; A. Ley. 



Lycojiodiinn alpinmn L. A single small patch on the north 

 face of the Black Moiintain, six miles south of Hay ; A. Ley. — L. 

 Sclago L. Taren r' Esgob Black Mountain, in small quantity ; 

 A . Ley. 



Eqtdsetum arvense L. C. — '''E. maximum Lam. Abundant in 

 a swamp above Ffrwdgrech Waterfall. Evidently rare in Mid- 

 Wales, and not yet recorded from neighbouring counties of Radnor 

 and Montgomery. — K. sylvaticum L. Near Nant-gwyllt; A. Ley. 

 Rare. Swampy mountain side near Pen-y-wyllt Station. — E. 

 palustre L. C. — -'-E. limosum L. Llangorse Lake, abundant. 



THE IDENTITY OF BACTERIUM FCETIDUM Thin 



WITH SOIL COCCI. 



By Spencer Le M. Moore, F.L. S. 



In the Royal Society's 'Proceedings' (xxx. 473), Dr. Thin 

 described the organism found in association with profuse sweating 

 of the soles of the feet to which he gave the name of BacteriutK. 

 fcetidum. In the moisture which exudes from the soles, and which, 

 on account of its alkaline reaction compared with the acidity of 

 perspiration obtained at the same time from the general surface of 

 the body. Dr. Thin considers to be not pure sweat, but a mixture 

 of sweat and serous exudation from the blood, Bacterium Jatidum is 

 capable of rapid growth, the form assumed bcmg that of spherical 

 cocci refracting light brightly and uniformly. Cultivated in sterilised 

 vitreous humour, the cocci were found to develop into a series of 

 forms, commencnig with wedge- and canoe-shaped bodies con- 

 taining each a bright coccus ; thence into short rods bearing a 

 coccus or cocci at the ends or centre : these rods either became 

 fragmented, the fragments clhiging together in clusters, or they 

 assumed ordinary Bacterium and Bacillus form and spored, the 



