lO 



ABSORBENT VESSELS. 



Sect. II. i 



SECT. 



II 



THE ABSORBENT VESSELS OF VEGETABLES 



■,.-^ 



r 



I 



RoQts^ leaves, harkyfap-woodijhewn to ah/orb by not moijlening them, by placing 



them 

 ink, ■ 



in water. 2 . Abforbent vejfels coloured by a deco£iion of madder, by dilute 

 ^heyform a ring in the Jap-wood beneath the bark, with a ring of arteries 

 exterior to them. 3 . Abforbent s erroneoufly believed to be air -vejfels, are vijtbly 

 full of Jap-juice in a vine-flalk. Vegetable vejfels have rigid Jtdes, which do not 

 collapje, and hence become full of air when cut j not Jo in animal vejfels. 4. Some 

 horizontal vejfels in trees are truly air-vejfels for the emhryon bud, like the air in 

 the broad end of the egg. 5 . Abforbent vejfels conjift of long cylinders ; air will 

 pajs through them either way in the dead vegetable ; are not rejpiratory organs, as 



they exiji in the roots oft 



May receive air dijfolved 



ejfels aEl either direSl or retrograde. A Jorked branch 



6. Abforbent 

 An inverted 



tree. AJuJpended 



the operation of an emetic, and in ruminating 



7 . 'They confifi of a Jpiral line without valves -, and by its vermicular 



forcibly carry on their contained fluids either 



Thoje of 



Jionally in winter j but vines in hot- houjes mujl have their roots guarded from frofl 



fpring 



Accumulated ice dejiroys trees in Jpring. 9. They Jomitimes abjorh 



poijonous fluids , asjpirit of wine , Jdution of arjenic, vitriolic acid-, roots Jaid 



creep ajidefrom bad foil 

 chyle. 



Abjorbents of trees like the receptacle of 



I. 



The exiftence of that branch of the abforbent vcflels of veg 



bles 



hich refeoibles th 



fteals of 



rm 



bod 



d 



bibc 



their nutriment from the moift earth, is evinced by their growth, fo 



& 



moifture is appHed to their roots, and their quickly with 



when it is withdrawn 



Befid 



V 



» 



