The Year-book of Facts in Science and Art

acid action America apparatus appear beds British Association butter carbon carbonic acid Carboniferous cent China Chinese cold colour contain copper Cretaceous deposits Devonian diameter diamond effect electric England Eocene epoch experiments fact feet fish Fleuss formation formed fresh-water geological geologists give glacial gneiss granite ground gypsum heat India insect iron island known lake land latter lecturer light Lower Silurian M'Carthy machine magnetic Max Müller ment metal metamorphic mètres miles Miocene mirror moisture mountain museums Nakelo native nest North observations Old Red Old Red Sandstone Oolites oxide paper Permian plants Pliocene present produced Professor proved rays recently Red Sandstone region river rock-salt rocks Roderick Murchison salt Sanskrit schists Scotland selenium Shoshong Society South species strata sulphate surface tained temperature tion trees Triassic tube tunnel ture various volcanic zinc