Intelligent action, [128], [132]
Jaws, insects, [67]; vertebrates, [73]
Knowledge, value of, [150], [229], [242]
Law, Divine, [245]
Locomotion and nervous development, [61]. See also [Muscular System]
Magosphæra, [40]
Mammals, [85], [92]; oviparous, [86]; marsupial, [87]; placental, [88]; temporarily surpassed by reptiles, [195]
Man, [210], [219]; anatomical characteristics, [92]; mental and moral characteristics, [99], [112], [147], [150], [219], [242]; relation to nature, [210]; animal, [213]; moral, [220]; religious, [224]; hero, [227]; future, [228], [231]
Materialism, [165]