OCR Text |
Show Ij l£ C T U RES ON 'J'Jm ELEJVIENTS OF COlVIP ARATIVE ANA.TOJHY. f ~ LEC'I'UI~.E I. ON TILl£ CLASBIPICArriON OF ANIMAL8. 'l'IIE GREGARINIDA, RHIZOPODA, SPONGIDA, AND INFUSORIA. BY the chvsification of any . ericH of objects, is meant tho actual, or ideal, arrangement together of tho ·o which are like and the separation of those whieh are unlike; tho purpose of this arrangement being to facilitate tho operations of tho 1uind in clearly conceiving and retaining in tho rnemory, tho characters of tho objects in question. Thus, there may be as many cia. sifications of any series of natural, or of other, bodies, as they have properties or relations to one another, or to other things ; or, again, as there arc n1oclos in whieh they 1nay be regarded by the min<l : so that, with respect to such classification as we nrc here coneernod with, it might be more proper to speak of a clas ification than of the classification of the animal kingd01n. The preparations in the galleries of the l\f useum of this College arc arranged upon tho basis laid down by John Ilunter, whose original collection was intended to illustrate the modifications which the great physiological apparatuses undergo in the B |