32 



BY T. L. I> R.YN CROFT, M.B 



siderable powers of locomotion, which they exercis3 in the blood 

 serum, in which they dash along in wave-like motion with sufficient 

 force to overcome the resistance of any blood corpuscles which may 

 happen to oppose their progress. They were originally found in 

 rat's blood in 1879, but since then the same organisms have been 

 met with in the blood of the mud fish and German carp. More 

 remarkable still, this minute protozoan Haematomonas has been 

 demonstrated by Crookshank to be invariably present in the blood 

 of animals suffering from a disease known as surra, and referred to 

 by Veterinary Surgeon R. W. Burke, M.R C.V.S., as " a pernicious 

 anaemia." This disease has proved fatal to horses, mules, and even 

 camels in Burmah as well as in India. The exact relation which 

 the parasite bears to this surra, which it attends, still requires to be 

 ascertained, nor has it been demonstrated that it is the cause of the 

 malady : moreover, in rats the presence of Haematomonas does not 

 occasion any apparent symptoms of disease. It is noteworthy, too^ 

 as a singular coincidence, that the original finder of this entozoan 



namely, Lewis, should meet with corroboration of his discovery at 



the hands of Dr. T. L. Bancroft, in Queensland, he having pre- 

 viously stood in the same relation to Dr. J, Bancroft in the 

 discovery of the human-blood parasite — Pilaria Bancrofts 



EXHIBITS. 



FRIDAY, 10th FEBRUARY, 1 



1. By Mr. A. Norton, M.L.A. 



A Full Suite of Mount Morgan Auriferous Ores. These, by 

 request, were commented on by Mr. E. B. Lindon, 

 A.R.S.M. 



2. By Mr. John Shirley. 



A Mounted Set of Queensland Lichens, systematically 

 arranged, the property of the Colonial Botanist, Mr. F. 

 M. Bailey. 



