■^•ix. 





I. 



I. 



>' 







•;? /^f ^a 



1 



r 



s. 



^ 2 . Central 



f. s-i; 



Ms 



^^eds of cnhi 



^ to root'huk 

 oftrets. hi. 



"ulerm mts ij 



's. IFbyJeeiki 

 2Ztr^ f of dmi 

 :md the "dint- 

 red z^ith thefi 

 Poiaioes, m 



,n for wards to 

 :rve the f 



1 



the pencarP 







fthe 



an 



thers 



the 

 cicatf 



icula 0" 



o^n 



Jate^ ' 



( 



Sect. IX. i. 2, 3 



SEEDS, BUDS, BULBS. 



143 



thers the feed 



the braaes or floral-leaves of many plants; in ( 

 felf inclofed in an air-velTel probably for that purpofe, as in flaphyl 

 bladder nut, and tagetes, African marygold. At the fame time a ] 

 fervoir of nutriment is fecreted, and depofited in the feed-lobes or c 



yledons, which are fingle ones 



the feeds of palms, grafles, and 



lilies ; though twofold in thofc of mofl other herbs and trees ; wh 

 the flridleft analogy exifts between feeds and 



2. 



In Tome feeds, when they leave the vegetable uterus, this em 



bryon is much mpre mature than 



others. In the feeds of th 



nymphaea nelumbo the leaves of the future plant were feen fo dif- 

 tinaiy by Mr. Ferber, that he found out by them to what plant the 



feeds belonged, 

 dron tulipiferum 



The fame in the feeds of the tulip 



liriod 



Amaen. Acad. V. VI. No 



And Mr. Bake 



afferts, that on difTefting a feed of trembling grafs, he difcovered by 



the microfcope a perfect plant with roots fending forth two branches, 

 from each of which feveral leaves or blades of grafs proceeded. Mi- 

 crofc. Vol. I. p. 252.' While in other feeds the corculum, or heart 



ly of the feed, is diftin<flly vifibl 



the kernel of the wa 



and the feed of the garden-bean. So in the animal kingdom the you 

 of fome birds are much more mature at their birth than thofe of othe 

 The chickens of pheafants, quails, and partridges, can ufe their ey 



1^ 



fter their moth 



d peck their food, almoil as foon as they 



leave their ftiell; but thofc of the linnet, thrufh, and blackbird, 

 tinue many days totally blind, and can only open their callow mc 



V ■ 



for the offered morfel. 



3. When the feed falls naturally upon the earth, or is buried 

 ficially in (hallow trenches beneath the foil, the firft three thing 

 cefTary to Its growth are heat, water, and air. 



I 



Heat is the general 



fe of fluidity,, without which no motion can exift ; water is th 

 nftruum, in which the nutriment of vegetable and animal bodle 



veyed to th 







d the oxygen of the atm 



fphere is believed to afford the principle of excitabihty fo perpetually 



neceffary 



