/ Sec 30 MBA À L4 VE SG& SECT..IIL IS. 4 | ed lower than the origin of this branch did not bled..This may:be qhic accounted for from the afcent of the fluid in thefe veffels being at tobl this time principally owing to the action of their abforbent mouths, ter | and to their confifting of long cylinders with minute diameters and that rigid coats, like thofe which are vifible to the eyein dry cane, through finp which fmoke will paf in either direétion, and which at this early fea-, wth {on may not be excited into vegetable action; there is neverthelefs a dow! power of abforption exifüng in any part of them inthe Warmer{ea- thec fon, becaufe a branch or flower-ftaik cut from the root, and fet in a a WC glafs of water, will drink up a confiderable quantity of itt There is na alfo a fituation in their difeafed or dead ftate, where they appear to sc aét for fome years like Capillary tubes, as in the decorticated part of a| De ot as wh pear-tree, defcribed in Se&. XV. DD à 5+ During the great action of thefe umbilical abforbent vefels the| me buds become expanded, that is the Young vegetable beings put forth| Le leaves, which are their lungs, and confift of a pulmonary artery, vein, L and abforbents, and alfo acquire a new bark over that of the branches, el trunk, and roots, of the laft year, which confifts of aortal arteries, DA veins, and abforbents, and new radicles, which terminate in the foil.| IUT At this time the umbilical voflels, which exifted in the alburnum, or pol fap-wood, ceafe to act, and coalefce into more folid wood, perhaps are fimply by the contration of the{piral fibre, of which they are com- the pofed; and the fwarm of new vecetables, which conftitute à tree, are| il now nourifhed by their proper lacteal and lymphatic{yftems. bus, À curious circumftance now occurs, which is that wherever a tree j| chick is now wounded, no moifture appears. On the contrary, the wound reel from Dr. Hales’s experimentsis in a ftrongely abforbing ftate, infomuch Num, that on applying water to wounds made in the fummer feafon, it was prob found to be drank up with great force, as was ingenioufly fhewn by the€ mercurial fyphons contrived to refift its abforption, nth This evinces, that though during the bleeding feafon in the vernal ke months the fap-juice is imbibed by the umbilical abforbents, and car ried | |