TABULAR ARRANGEMENT OF ORGANS. 305 



away by floods, but it can shade 7000 men, and its circumference, 

 measuring its principal trunk only, is 2000 feet. The chief trunks of 

 this tree greatly exceed our English Oaks and Elms in thickness, and 

 are above 350 in number. The smaller stems are more than 3000 

 in number. 



636. The Maronites believe that some Cedars near the village of 

 Eden in Lebanon, are the remains of the forest which furnished Solo- 

 mon with timber for the temple, full 3000 years ago. These Cedars 

 were visited by Belonius in 1550, who found them twenty-eight in 

 number ; Rawolf, in 1575, makes them twenty-four ; Dandini, in 

 1660, and Thevenot, about fifty years after, make them twenty-three; 

 Maundrell, in 1696, found them reduced to sixteen; Pococke, in 

 1736, found fifteen standing; in 1810, Burckhardt counted eleven or 

 twelve ; and Dr. Eichardson, in 1818, states them to be no more than 

 seven. They must be of great antiquity, seeing they were counted 

 old 300 years ago. Maundrell mentions the size of some of the 

 Cedars. The largest he measured was 36 feet 6 inches in circumfer- 

 ence, and 117 feet in the spread of its boughs. 



637 Decandolle gives a list of the ascertained ages of certain trees : 



Elm, 335 years. 



Cypress, about 350 



Cheirostemon (Hand-tree), about 400 



Ivy 450 



Larch, 576 



Sweet Chestnut, about 600 



Orange, 630 



Olive, 700 



Platanus Orientalis, 720 



Cedar, 800 



Many tropical trees, according to Humboldt, about.. ..1000 



Lime, 1076, 1147 



Oak, 810, 1080, 1500 



Yew 1214, 1458, 2588, 2820 



Taxodium, upwards of 4000 



Adansonia, 5000 



10. GENERA! OBSERVATIONS ON THE ORGANS OF PLANTS, AND ON THE MODE IN WHICH THEY 

 ARE ARRANGED. 



638. Before concluding the consideration of the elementary and 

 compound organs of plants, it is proposed to make some general 

 observations on their arrangement and development. The following 

 is a tabular view of the various organs to which attention has been 

 directed : 



GENERAL ARRANGEMENT OF THE ORGANS OF PHANEROGAMOUS PLANTS. 

 I. Elementary Organs. 



( Vesicles or Cellules, Cellular Tissue. 



