Considerable space has been devoted to the discussion of the principles of Zoological classification, and the body of the work is prefaced by a synoptical view of the chief divisions of the animal kingdom.

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FOOTNOTES:

[1] It is unusual for muscles to have two tendons at the same end. Hence the name biceps, or “two-headed.”

[2] From pulmo, lung; the artery of the lung.

[3] From hepar, liver; the vein of the liver.

Typographical errors corrected by the etext transcriber:
would be unvailing=> would be unavailing {pg 34}
cordæ tendineæ=> chordæ tendineæ {pg 70}
the triscuspid valve between=> the tricuspid valve between {pg 72}
the body may may=> the body may {pg 103}