244 EVOLUTION 



anew, here the huge and passive python, and 

 there the small and nimble fer de lance. Once 

 more, for birds, see the contrast of the massive 

 pedestrian dodo with his pigeon cousins; or 

 of giant chickens like the ostrich and emu 

 tribes with exquisite but tiny adults, say the 

 hummingbirds. The kinship of elephant and 

 coney, the contrast of stony glyptodon and 

 gigantic sloth with nimble lemur and agile 

 monkey, and again of bear and dog, of dog 

 and cat, of sheep and goat, are thus re-inter- 

 preted together, no longer as for the early 

 Darwinians as so many machine-like com- 

 binations of innumerable indefinite variations 

 externally selected from among yet more 

 innumerable ones, nor even among a more 

 limited number of ancestral possibilities, but 

 as so many forms thrown from the rhythmic 

 oscillation of the loom of life. Each of 

 these types or species, with its exquisite 

 intricacy of detail and individuality of pat- 

 tern, its marvellous correlation of organs, is 

 thus a new unity created from within by its 

 own interior play and balance of vegetative 

 and reproductive forces, its inner predomin- 

 ances here of anabolisms and there of katabol- 

 isms. Growth and arrest, giant and dwarf, 

 rest and movement, sleep and waking, even 

 female and male are contrasts all physio- 



