Illustrated Natural History

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Excerpt from Illustrated Natural History: Birds The fuller and more technical description of the Birds runs as follows. They. Are vertebrate animals, but do not suckle their young, nourishing them in most instances with food which has been partially macerated in their own digestive organs, and which they are able to disgorge at will, . After a manner somewhat similar to that of the ruminating quadrupeds. The young are not produced in an actively animated state, but inclosed in the egg, from which they do not emerge until they have been warmed into independent life by the effects of constant warmth. Generally, the eggs are hatched by means of the natural warmth which proceeds from. The mother bird but in some instances, such as that of the talle galla of Australia, the eggs are placed in a vast heap of dead leaves and grass, and developed by means of the heat which is exhaled from decaying vegetable sub stances, and which is generated to such an extent that in some cases, such as a wet hay-stack, it actually sets the seething mass on fire. Urged by a like instinct, our common English snake deposits its eggs in secret spots, such as dunghills and hotbeds, and there leaves them to be hatched by the constantly generated warmth. Ans analogous process has long been in vogue among the Egyptians for the hatching of young poultry by artificial heat, and has been, in comparatively recent years, introduced into this country. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.