{YS 
2 PROF, E, A. MINCHIN ON PROTOZOAN [ Jan. 12, 
stomach and intestines of a Cobra suffering from gastro-enteritis,. 
and made the following remarks :— 
“These specimens are shown in order to call attention to the 
condition of inflammation of the stomach and intestines in snakes. 
from the Society’s Collection. Out of 160 cases examined during 
the last year by far the larger number showed this condition in 
varying degr ees; and that is after excluding those cases due to 
the direct Suoidniionl of worms which had cemeed ulceration or 
perforation. 
“Of course there are many causes of inflammatory conditions 
of the stomach and intestines, but it would appear, from the large 
percentage of cases showing this condition, that there must be 
some common cause, and as the present method of feeding the 
snakes is an unphysiological one, it might be worth while to 
consider whether it may ‘not be the cause of the large mortality 
from these inflammatory conditions of the alimentary tract.” 
The following papers were read :— 
1. Observations on the Flagellates Parasitic in the Blood of 
Freshwater Fishes. By Prof. E. A. Mincuty, M.A., 
Wale AS) 
[Received December 23, 1908. ] 
(Plates I.-V.*) 
Introductory. 
The trypanosomes and trypanoplasms of freshwater fishes have. 
been studied by a number of naturalists abroad, and have been 
the subject of several important memoirs, more especially by 
Laveran & Mesnil, Léger, and Brumpt in France, and by Keys- 
selitz in Germany. In this country, however, little attention has 
been paid to them. I was therefore glad to avail myself of the 
exceptional opportunities offered by the Sutton Broad Laboratory, 
to study the parasites of the fishes in the Norfolk Broad. TI desire 
to take this opportunity of expressing my warmest thanks to my 
friends Messrs. Kustace and Robert Gurney for their kindness in 
putting at my disposal the resources of their picturesque and well- 
equipped laboratory, and for much help during my stay there. I 
spent portions of my summer vacations at the laboratory, about 
three weeks in August and September 1907, and five weeks in the 
same months in 1908, and during these periods I occupied myself 
almost entirely with these parasites. Although I have only 
touched the fringe of the question so far, and there is still every- 
thing to be discovered and worked out concerning the all-important 
* Wor explanation of the Plates see p. 29. 
