Part 22

Maxwell, James Clerk, on the ether, 63; on atoms, 198.

Mechanism, the scientific explanation of mind, 5; and ethics, 12; reaction against, 32; definition, 72; Prof. Henderson's view, 88, 89; vs. vitalism, 212-243. See also Life.

Metaphysics, necessity of, 101.

Micellar strings, 217.

Microbalance, 60.

Mind, evolution of, 287, 288. See also Intelligence.

Molecules, spaces between, 65, 196; speed, 192; unchanging character, 205, 206.

Monera, 285.

Moore, Benjamin, a scientific vitalist, 106; his "biotic energy," 106-113, 145, 146.

Morgan, Thomas Hunt, 148.

Motion, perpetual, 190, 191, 278; mass and molecular, 269, 270.

Naegeli, Karl Wilhelm von, 217.

Nitrogen, 51.

Nonentities, 99, 100.

Odors, 198, 199.

Osmotic growths, 167, 168.

Oxygen, activities of, 51, 52, 59; in the crust of the earth, 193; chemical affinities, 193-195; different forms of atoms, 200.

Parker, Theodore, on the universe, 280.

Parthenogenesis, artificial, 11, 74.

Pasteur, Louis, his "dissymmetric force," 22, 32.

Philosophy, supplements science, 94-96, 104, 109, 163, 164; deals with fundamental problems, 242, 243; contradictions in, 254-258.

Phosphorus, 59, 60.

Physics, staggering figures in, 192.

Pitch lake, 123.

Plants, force exerted by growing, 17-20.

Plasmogen, 145, 146.

Plastidules, 217.

Protobion, 135.