. Animal life as affected by the natural conditions of existence. Animal ecology. 180 THE INFLUENCE OF INANIMATE SURE0UNDJN6S. some reservations; for, in the first place, we know that various animals are, as a rule, influenced in different ways by the medium in which they live ; and besides, we cannot assert, on the basis of any experimental research, that certain gases which are injurious to men or to birds may not be indifferent or even. Fio. 52.—Tracheal system indicated within the outline a of a Watev-bng, b of the larva of an jEschna. The traoheas are shaded. advantageous to othfer animal
. Animal life as affected by the natural conditions of existence. Animal ecology. 180 THE INFLUENCE OF INANIMATE SURE0UNDJN6S. some reservations; for, in the first place, we know that various animals are, as a rule, influenced in different ways by the medium in which they live ; and besides, we cannot assert, on the basis of any experimental research, that certain gases which are injurious to men or to birds may not be indifferent or even. Fio. 52.—Tracheal system indicated within the outline a of a Watev-bng, b of the larva of an jEschna. The traoheas are shaded. advantageous to othfer animals. Tor instance, it is well known that many larvse of insects live in situations, as in decaying matter, where the air is undoubtedly mixed with gases which tne higher Yertebrata could not breathe without injury also that the capability for resisting the effects of irrespirable or. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Semper, C. (Carl), 1832-1893. New York, D. Appleton
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishernewyo, bookyear1881
