29 



Ordinary Meeting, November 27th, 1883. 



H. E, KoscoE, Ph.D., LL.D., F.RS.,, &e., President, 

 in the Chair. 



The President stated that among other institutions that 

 had come under the notice of the Commissioners for en- 

 quiring into the state of Technical Education, was the 

 Industrial Society of Mulhouse, and he gave from official 

 sources some account of the organization and work of the 

 Society. • 



"On the Fungus of the Salmon Disease — Saprolegiiia 

 ferax," by H. Marshall Ward, M.A., Fellow of Christ 

 College, Cambridge. 



We are informed, in the 21st Annual Report of H.M. 

 Inspectors of Salmon Fisheries, that since its first appear- 

 ance in 1877 in certain rivers flowing into the Sol way Firth 

 the disease above named has extended rapidly and widely, 

 and in 1880 appeared in North Wales. Salmon aftected by 

 the disease show signs of languor, feed badly, and, when 

 severely-diseased, die. The external signs of the disease are 

 greyish discolorations of the skin on the head, jaws, fins, 

 and other parts of the body. These ash-coloured patches 

 often extend over considerable areas, and the skin affected 

 may be rubbed off", and bleeding sores be exposed, causing 

 great uneasiness and irritability to the fish. 



The papyraceous, ash-coloured mass of tlie grey patches 

 consists in the main of the fungus to be described. This is 

 Proceedixgs— Lit. & Phil. Soc— Vol. XXIII.— ISTo. 3 — SEi?sioN 1883-4. 



