VEGETABLE ORGANIZATION. 71 



is the most effective for obtaining the greatest 

 possible degree of strength.* 



The graceful continuous curve with which the 

 stem of a tree rises from the ground, is exactly the 

 form which is best calculated to give stability to 

 the trunk. Evidence of express mechanical de- 

 sign is likewise afforded by the manner in which 

 the trunk is subdivided into its branches, spreading 

 out in all directions, manifestly with a view to pro- 

 cure for the leaves the greatest extent of surface, 

 and thus enable them to receive the fullest action 

 of both light and air. The branches, also, are so 

 constructed as to yield to the irregular impulses of 

 the wind, and again, by their elasticity, to return 

 to their natural positions ; and by these alternate 

 inflexions on opposite sides, to promote the motion 

 of the sap in the vessels and cellular texture of the 

 liber and alburnum. Nothing can exceed the ele- 

 gance of those forms which are presented in every 

 part of the vegetable kingdom, whether they be 

 considered with reference to their direct utility for 

 the support of individual life, and the continuance 

 of the species, or whether they be viewed as com- 

 ponent parts of that beauty which is spread over 

 the scenery of nature, and is so delightfully re- 

 freshing to the eye of every beholder alive to its 

 fascinating charms. How enchanting are all the 

 varieties of flowers, that decorate in gay profusion 

 every part of the garden of creation ; and into which 

 the farther we carry our philosophic scrutiny, the 



* Galileo, the most profound philosopher of his age, when inter- 

 rogated by the inquisition as to his belief in a Supreme Being, 

 replied, pointing to a straw on the floor of his dungeon, that from 

 the structure of that object alone he would infer with certainty the 

 existence of an intelligent Creator. 



