Manual of the animal kingdom / by J. Reay Greene.

  • Greene, Joseph Reay.
Date:
1859-1861
Catalogue details

Licence: Public Domain Mark

Credit: Manual of the animal kingdom / by J. Reay Greene. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    the general plan of the work is independent of these artificial divisions. In treating of the classification of the Protozoa, it will be seen that the expressions, class, order, family, and genus, are not here made use of. To these terms a definite meaning is, or ought to be, always attached, and it would, therefore, be pre- mature to apply them to the subdivisions of the Protozoa; the natural groups into which this de- partment is resolvable not having been yet deter- mined with absolute certainty. Since the present work is the first of a series of similar treatises, on the several departments of the Animal Kingdom, it has been deemed neces- sary to prefix thereto a brief introduction on the general principles of zoological science. Queen’s College, Cork, May, 1859.