churning of, [82]

containers, [82]

Mercury jet interrupter, [29]

Metal prints, [15], [18], [32], [59], [64], [95], [120], [124]

drying the, [121], [123]

exposure of, [121]

size of, [22], [24], [75], [77]

pressing the, [22]

Microscope, [131], [137]

Military uses, [35]