Slicer, [159], [163]

Smoke, [16], [20], [32], [34], [36], [57], [59], [66], [73], [74], [80], [89], [146], [214], [215], [246]

Socket, electrical, [143]

Soot, [17], [20], [32], [39], [66], [75], [78], [214]

Sparks, electric, [110], [144]

Specific gravity, [217], [237], [239]

heat, [156], [158]

Speed by use of wheels, [165], [212]

Spiral, [163]

Spoons, [157], [158], [227], [228]