394 LOGIC: OR,THE RIGHT USE OF REASON, of a natural tree, wherein the genus or general ideas stands for the root or stock, and the several kinds, or species, and indivi= duals, are distributed abroad, and represented in their dependence and connection, like the several boughs, branches, and lesser shoots. For instance, let animal be the root of a logical tree the resemblance is seen by mere inspection though the root be not placed at the bottom of the. page. ( ( Philip Man ) James Peter Thomas, &c. (Horse - Trott, Bayard, &c. Squirrel Beast Lion f Mastifï Illog )Spaniel. Bear, &c. )Greyhound. Animal i Beagle, &c. Eagle Bird Lark (English. Duck Muscovy. Gouse, &c, Hook Bill, &c, Trout Fish Whale Oyster, &c. Flying l Bee, sp &e. Insect ,¿ ( Worm. Creeping Ant. l Caterpillar, &c. The same similitude will serve also to illustrate the division and subdivision of an integral whole, into its several parts. When Logic directs us to place all our ideas in a proper method, most convenient both for instruction and memory, it doth the same service as the cases of well contrived shelves in a large library, wherein folios, quartos, and octavos, and lesser volumes, are disposed in such exact order under the particular heads of divinity, history, mathematics, ancient and miscella- neous learning, &c. that the student knows where to find every hook, and has them all as it were within his command at once, because of the exact order wherein they are placed. The man who has such assistances as these at hand, in order-to manage his conceptions and regulate his ideas, is well prepared to improve his knowledge, and to join these ideas together in a regular manner by judgment, which is the second operation of the mind, and will be the subject of the second, part of Logic.
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