The Origin and Evolution of Life: On the Theory of Action, Reaction and Interaction of Energy

actions and reactions adaptive radiation Africa algæ American Museum amphibians ancestral appear aquatic arboreal armature armored author by W. K. bacteria birds body form bony calcium Cambrian carbon CARBONIFEROUS causes cell changes characters chemical messengers chlorophyll chromatin colloids complex compounds continental deposits Devonian dinosaurs earth energy environment enzymes Eocene Epoch evolution evolved existing fishes fossil function ganoids geologic germ habitat zones heat herbivorous heredity heredity-chromatin hydrogen ichthyosaurs iguanodonts interaction invertebrates Jurassic known limbs littoral living matter Loeb LOWER CRETACEOUS mammalian mammals marine mosasaurs Museum of Natural Natural History nitrogen North America observed Oligocene organism origin Osborn ostracoderms oxygen PALAEOZOIC pelagic period Permian PERMO phase physicochemical plesiosaurs primitive primordial proteins protoplasm Protozoa PTEROSAURS reptiles REPTILIA Sauropoda Schuchert seas sharks SILURIAN skeleton solar stage structure substances swift-moving teeth terrestrial Tertiary theory tion tissues transformation Triassic Upper Cretaceous velocity vertebrates W. K. Gregory whales