the mine has been but recently opened to its present depth, and the influence of atmospheric temperature will every year become more sensible in the strata below. The annexed figure represents the protected maximum thermometer, designed by Sir W. Thomson for the purposes of the Committee. A is the protecting case of glass hermetically sealed, B the Phillips's thermometer enclosed in it and d. A B Section of Strata sunk through (with shaft 16 feet diameter) at Rose-Bridge Second Report of the Committee appointed to get cut and prepared Sections of Mountain-Limestone Corals for Photographing. The Committee consists of HENRY WOODWARD, F.G.S., Prof. DUNCAN, F.R.S., Prof. HARKNESS, F.R.S., and JAMES THOMSON, F.G.S. Ix presenting to the Association the second Report on the slicing of corals from the Mountain Limestone, for the purpose of showing their structural characteristics by means of photography, we have to state that considerable progress has been made during the year, but much still remains to be done |