Xll. LIVERPOOL BIOLOGICAL SOCIETY. 



The fifth, meeting of the eighteenth session was held at 

 the University, on Friday, February 12th, 1904. 

 Prof. Herdman (Yice-President) in the chair. 



1. Colonel David Bruce, M.B., R.A.M.C., F.R.S., lec- 

 tured before the Society on " Trypanosoma and 

 Sleeping Sickness at Uganda." The Lecturer gave 

 a graphic account of his work in Uganda, and by 

 means of photographs traced the various phases of 

 the sickness as shown by his investigations on native 

 patients. He demonstrated that it was only when 

 trypanosoma made their way from the blood into 

 the cerebro-spinal fluid that pronounced sleeping- 

 sickness symptoms developed. The exact corre- 

 spondence of the sleeping sickness areas with the 

 distribution of the fly, bearing the sleeping-sick- 

 ness trypanosoma, was clearly proved. A cordial 

 vote of thanks was accorded the lecturer. 



The sixth meeting of the eighteenth session was held 

 at the University, on Friday, March 11th, 1904- 

 The Yice-President (Prof. Herdman) in the chair. 

 1. Mr. Cole gave a lecture on " Recent Discoveries in 

 Embryology," in which be dealt with the recent 

 work by Dr. Beard (Edinburgh University) and 

 others, on Mitosis or Cell-division, and the lecturer 

 showed what a new and important field these in- 

 vestigations opened up in the work of cancer 

 research. The Society was favoured by the kind- 

 ness of Dr. Beard in lending for the lecture his 

 original microscopical preparations and the 

 lantern slides prepared from them, and the 

 privilege was highly appreciated. 



