CHAPTER III.

SPREAD OF GLACIERS DURING COLD EPOCHS, 54–61

Spread of glaciers in tropical zone, 54; Professor Agassiz on the origin of Galapagos Islands, 55; the bowlders of Hood’s Island and rookery of Albatross, 56; alpine flora of Galapagos and tropical America, 57; Mr. J. Crawford on ancient glaciers in Nicaragua, 58; Cuba and Republic of Colombia during ice age, 58; destruction of animal life during glacial age, 59; temperature of North Atlantic and Mediterranean Sea during ice age, 60; temperature of ocean during warm epochs, 61; generative age ascribed to warm eras; Professor Wright on pre-glacial man, 61.