Compressed-air pump, [113], [115], [117]
Combustion, [16], [17], [23], [24], [58], [66], [74], [76], [77]
Conductivity of materials, [156], [157], [158]
Contraction of materials, [235]
Cookers, [50], [51], [55], [56]
Coolers, [105], [106], [108], [109]
Crank, [163]
Cubic measure, [229]