Quarterly Journal of Science: 1873, 10. cilt

acid action Alhazen amblygonite amount appears atmosphere carbon carbonado carboniferous cause cent chemical chlorophyll coal colouring matters considerable contains copper crater density deposits determined Devonian diamond direction disc earth effect electricity English ethereal waves evidence existence experiments fact feet Felida force fossils fucoxanthine fuel geological Gilpin County give glacial gold guano gun-cotton heat hyæna important inches incisor increase iron language less light Linné London lunar Machairodus machine magnetic Mars means Messrs metal method miles mineral mines moon moon's surface motion nature observations obtained old red sandstone Oolite ordinary paper peat phenomena physical plants plate Plato portion present probably produced Prof quantity railway recent remarkable rocks scientific sewage Silurian silver South specimens spectrum stone substances supposed temperature thallium theory tion tons Trilobites tube vibrations weight whilst xanthophyll