266 REPORTS FROM THE SECTIONS. 
“Mr. Wo. MacDoxnent exhibited a Crouch’s No. 24 binocular 
microscope, with a quantity of apparatus. The instrument was 
furnished with an adaptation, by which perfect centricity o of the 
stage with the optic axis of the tube was easily secured 
Mr. H. Paterson showed some ig a he had obtained from 
the fresh water supplied in the city mai 
MONDAY, 9 JULY, 1877. 
Mr. Atrrep Rozerts, M.R.C.S., in the Chair. 
A discussion ensued in reference to diatoms obtainable i in the 
= = U. C. CoryEer exhibited specimens of Drosera ttt 
upon the ere characteristics of these species, and promised 
to pursue the matter further and = the results before the 
Section in the form of a paper. 
Mr. G. D. Hresr showed a Seve of a new species of 
Branchionus—a rotifer apparently common at the present time 
in ponds on the Sydney water reserve. A specimen was sine 
under the caries 
The Rev. Gro. a, RTIN exhibited some slides of his own 
pre paring, — which were “Foraminifera from Port Jackson, 
mounted in damar, and showing well their internal structure ; 
also Polypide of Hydroid copy from Newcastle, and the para- 
site Cimea lectularia ; this latter was prepared in acetic sak and 
showed the structure of the Bionic: and abdominal segments. 
Mr. Wau. MacDoynets exhibited a collection of anatomical 
slides, including blood discs from mammalia, birds, and 
and showing the different size of the corpuscle in each species 
