97 
MXCKOSCOPICAL SECTION. 
January 16th, 1865. 
J. Sidebotham, Esq., President of the Section, 
in the Chair. 
Exhibitions and Presentations . 
A box of two dozen slides of botanical specimens, beauti- 
fully mounted, presented to the Section by Mr. J. E. Whalley. 
Specimens of carbonate of magnesia from Greece ; the 
surfaces showing very delicate dendritic markings of oxide 
of manganese, well seen under the microscope.— Mr* A. 
Brothers. 
A fine specimen of Polyporus versicolor.— Mr. Grindon. 
A set of mounted specimens of leaves from the south of 
Europe and the Rocky Mountains, showing curious and 
novel markings. — Mr. W. H. Heys. 
Communications . 
The following note from Mr. Dancer, addressed to the 
President of the Section, was read : — ■ 
“ Sir,— I beg to state that, since our last meeting, I have 
carefully examined, with various powers of the microscope, 
the cotton hairs whilst undergoing dissolution in Schweizer’s 
