SUMMARY OF PROCEEDINGS AT MEETINGS. X1 
trypanosome occur, so that they are _ not 
degenerating. The trypanosome, for which the 
new specific name 7. rhodesiense was proposed, is 
of marked virulence, and is resistant to drugs. Its 
morphological peculiarity persists in rats, guinea- 
pigs, rabbits, monkeys, horses and dogs. 
It is also of interest to add that a trypanosome 
with precisely similar morphology has since been 
described by Stannus and Yorke from a case of 
sleeping sickness in Nyasaland, where Glossina 
morsitans 18 common. 
2. Dr. Dakin submitted a paper on some _ peculiar 
Invertebrate sense organs, in which the minute 
structure of the eyes of Pecten was contrasted 
with similar structures in other Invertebrates. 
3. Miss E. N. Tozer communicated a paper on the sense 
organs of muscles of mammals. 
The fourth meeting of the twenty-fifth session was 
held at the University, on Friday, January 138, 1911. 
The President in the chair. 
1. Dr. Roaf contributed a note on the purple gland of 
Purpura lapillus. 
wo 
Mr. Wm. Riddell, M.A., gave some records for the 
occurrence of certain species of Annelids at Port 
Erin (see ‘‘ Transactions,” p. 56). 
6) 
5. Mr. Douglas Laurie, M.A., gave a paper on * Thumb- 
marks.”’ Various types of markings were 
described, and the hereditary transmission of these 
characters was discussed in relation with the 
Mendelian theory. 
