. Animal life as affected by the natural conditions of existence. Animal ecology. CHARACTEKS OF ADAPTATION. 5 establish the affinities or the genealogy of an animal. SinQe the first appearance of Darwin's well-known work, this has in. Fig. 2.âDiagram of the lungs' and circulation of Birgus latro, the Palm Crab. I. The lung-vessels indicated within the outline of the animalâa,, aâ, cfg, the three upper affer- ent vessels (veins) ; e I, the efferent vessel (artery) : e &'â , section of the opening of the arterial gill-vessel; A, heart; h 5, pericardium. II. Diagram of section of the same, le
. Animal life as affected by the natural conditions of existence. Animal ecology. CHARACTEKS OF ADAPTATION. 5 establish the affinities or the genealogy of an animal. SinQe the first appearance of Darwin's well-known work, this has in. Fig. 2.âDiagram of the lungs' and circulation of Birgus latro, the Palm Crab. I. The lung-vessels indicated within the outline of the animalâa,, aâ, cfg, the three upper affer- ent vessels (veins) ; e I, the efferent vessel (artery) : e &'â , section of the opening of the arterial gill-vessel; A, heart; h 5, pericardium. II. Diagram of section of the same, lettered as aboveâ&/% gills or branchiaa; n^, the lower afferent vessel (vein); i, the lung cavity, showing the pulmonary villi (tufts) on tlie inner surface of the wall. fact been the method of modern zoology) and I do not fear contradiction when I say that we have already made consider- able advances in the art of discriminating between those typical. 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
