66 Proceedings, 



pGrbni)s the fimgns sometimes seen ou dead fish might have 

 something to do with projjagating the disease, as milhons of 

 dead flies are constantly faUing into our streams. He doubted 

 if change of temperature was a sufficient cause, though he 

 thought perhaps the infection of sewage-matter might have 

 something to do with it. Saprolec/na was a comparatively 

 new disease. Mr. Boyle stated that fish just newly returned 

 from the sea were not attacked by the disease, and that the 

 germs were probably omnipresent, and not introduced into 

 any water by the fish. 



Evening Meeting. — February 2nd, 1883. 

 Mr. John E. Littleboy, of Watford, read a paper on ' The 

 Migrations of Bn-ds.' * 



Evening Meeting. — March 9th, 1883. 



This meeting of the Club was made of a somewhat more 

 popular character than the ordinary meetings, and invitations 

 were issued to many of the schools and to young persons 

 generally in the neighbourhood, a large number of whom 

 were m attendance. 



A popular lecture, entitled 'Geology made Easy,' was 

 delivered by the Eev. Henry Brass, M.A., F.G.S., during 

 the course of which the lecturer described the nature of the 

 crust of the earth generally, exhibiting a large diagram 

 which presented the various strata forming the earth's crust. 

 He then described more in detail and by help of a large 

 map the geological formations to be met with between London 

 and Brighton, and answered the question often asked, "What 

 is the use of Geology?" pointing out how useful geological 

 knowledge has been in the discovery and working of coal- 

 fields and mines of various metals. He concluded by a 

 description of the chief features to be noted in the Geology 

 of our own neighbourhood, and exhibited a large collection 



* This paper has been published in the printed ' Proceedings of the 

 Hertfordshire Natural History Society.' 



