Thermometer scales, Table of, [184]
Thwaite-Denny furnace, [105], [106]
Thwaite power gas system, [110]
Thwaites’ furnace, [102]
Timber, Data as to, [174]
Tin, Minerals mistaken for, [32];
How to distinguish them from, [33]
Tin-mines at Mount Bischoff, [24]
Tin ores, [32]
Tree, To measure height of, [160]