could grow on solid rocks. They are four feet antF 

 upwards in diameter. The manner of their growth 

 is as follows. The seeds fly along the surface of the 

 ground, and some failing into the chinks of the rocks 

 strike root, then creep out upon the surface, and 

 seek another chink. -In this they swell to such a 

 size and strength, that the rock splits and makes way 

 for the root to sink deeper. And with this little 

 nourishment the tree in a few years grows to thatstu. 

 pcndous size. 



The progress of germination was accurately ob- 

 served by Malpighi in the seed of a Gourd. The day 

 after it was committed to the ground, he found the 

 outer coat a little swelled, and in its tip a small cleft 

 appeared, through which the sperm was seen. The 

 second day the outward coat was much softer, the 

 inner torn and corrupted, the germ somewhat longer 

 andmore swelled, and the beginning of the root ap. 1 r ir- 

 cd. The third day the root had made Us, If n lus.sago 

 through the coat, near the former clc-ft. T <e germ, 

 and seed leaves also were now grown much bigger. OLI 

 the sixth more of the seed leaves had broken through, 

 and were found thicker and harder. The root had 

 shot out many fibres, and the stem grown a fi ger's 

 length. About the twenty. first day the pia'it seam- 

 ed complete, from which time the seed leaves began 

 to droop, till they died away. 



C 0. The parts of different fruits are different, but 

 in ail the essential parts of the fruit, are only c./ntu 

 i! nations of the fibres, observed in the other parts of 

 the tree. And there is a direct communication be- 

 tween the iruit,and the remotest of part the tree. Thus 

 an apple cut cross ways appears to consist of four 

 parts. Fir*t the skin, derived from the outer bark 

 of the tree. 2. The pulp, which is an expansion of 

 the inner bark. 3. Ramifications of the woody part 

 of the tree, dispersed throughout the pulp. To 

 these are fastc-iu-d the coats of the kernels. And 

 these being at first extended to the flower, part oC 



