Ridpath's history of the world; being an account of the ethnic origin, primitive estate, early migrations, social conditions and present promise of the principal families of men .. . tothe surface with a solid mass of this su-perfecund species of fish. It can not bedoubted that but for the action of veryefficient countervailing agencies the quailof North America would in a short timemultiply to the occupation of all fieldsand groves and valleys, from mountainto mountain and from sea to sea. Soalso of the rabbits and many other spe-cies of ground animals. It may suffice to point out in this gen
Ridpath's history of the world; being an account of the ethnic origin, primitive estate, early migrations, social conditions and present promise of the principal families of men .. . tothe surface with a solid mass of this su-perfecund species of fish. It can not bedoubted that but for the action of veryefficient countervailing agencies the quailof North America would in a short timemultiply to the occupation of all fieldsand groves and valleys, from mountainto mountain and from sea to sea. Soalso of the rabbits and many other spe-cies of ground animals. It may suffice to point out in this gen-eral way the rudiments of the great prob-lem Of life. Nor Can it fail Curtailment of of interest to follow the in- ^^?domvestigation along the lines seed-of those methods which are provided forthe curtailment of life under the generallaw of natural selection. First of all, inthe case of living creatures vastly great-er numbers of eggs are provided than arenecessary for the preservation of the spe-cies. Here the struggle begins in thedestruction of the eggs of one species bythe animals of another. Great and mul-tifarious are the exigencies through 218 GREAT RACES OF EXAMPLE OF RAPID MULTIPLICATION—Burrow of Rabbits—Drawn by Giacomelli. which all eggs, as, for instance, the eggsof birds, must pass before they can cometo the stage of life and organic develop- ment. Every nest is exposed to thevicissitudes of storm and flood. Everynest is a temptation as well as a seat of MANNER OF THE BEGINNING.—THE TRUE EVOLUTION. 219 hope and despair. The living enemylurks on every hand. No eyrie is so in-accessible as not to be approached by thestealthy march of the foe. Then comethe vicissitudes and hardships of bear alike on the germs of life andupon all stages of organic single winter of unprecedented sever-ity, like that of 1607-08, is sufficient towork havoc and decimation with theplant and animal life of large areas ofthe world. After such a di
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Keywords: ., bookcentury1800, bookdecade1890, booksub, booksubjectworldhistory
