15 
of the strata, commencing with the Palaeozoic rocks, 
under the guidance of the president, Mr. Keal, and 
Mr. Stoddart ; and it has been proposed to obtain a 
large number of sections in the neighbourhood, drawn 
to scale, with the view of correlating them and thus 
obtaining the exact position of various beds in the 
locality. 
The business of the Chemical and Photographic 
section has been mainly confined to the reading and 
discussion of papers, several of considerable interest; 
amongst which may be mentioned addresses from its 
president upon Solar Power, Eadiations, and Ema- 
nations," and upon Professor Tyndall's researches 
on Calorescence ; papers by Mr. Noble on the 
Sewage question, and upon Old and New Metals, and 
by Mr. W. L. Carpenter, upon analyses of Silicate of 
Soda; while on Photographic subjects, Mr. P. J. 
Worsley made an interesting communication upon 
the conditions of sensibility of Iodide of Silver, and 
upon photography in colour, the Rev. W. W. Whiting 
explained his method of Microphotography, and Mr. 
Beattie explained and illustrated the Wohlthytype 
and Swan's Carbon - printing process, and the 
Pantascopic Camera. 
The Zoological section has only met twice for the 
reading of papers, when Mr. E. A. Praeger made a 
communication upon the habits of Hedgehogs, and 
Dr. H. Fripp gave a microscopic demonstration on the 
Structure of the Eye in the Cephalopod MoUusca. 
Having thus briefly reviewed the proceedings of the 
Society for the past year, your Council venture to offer 
