Milking, principle of the balance applied to, H. Strait, xxvii, 92.f
Milkweed, Asclepias Syriaca, a substitute for flax, xxvii, 384.
—, on the fibre of, xxviii, 380.
Miller, E., canals of Pennsylvania, xxv, 84; xxvi, 108.
—, on tracing oval arches, xxii, 303.f
Millet's smoke disperser, xvii, 164.
Milo, catacombs of, xvi, 331.f
—, caves of, containing alum, xvi, 334.
Mines, depth of different, xxix, 374.
—, wire ropes for deep, xxxv, 319.