SYSTEMATIC SYNTHESIS OF ELEMENTS. 159 



58. THE EIGHT KIND AND PROPORTION of the chem- 

 ical Elements must be selected, and under appropriate 

 influences they must combine and form chemical com- 

 pounds ; but that is not enough. 



59. THE CHEMICAL COMPOUNDS MUST BE SUBJECT to 

 a vital or secretory process, that will, under other proper 

 influences, produce a different kind and higher order of 

 compound than chemistry can produce. 



60. Illus. SUGAR is COMPOSED of the Elements of the first group, 

 and requires the influence of the sun's rays for its production ; but it also 

 requires the influence of secretion. Those Elements never will combine 

 to produce sugar, unless in addition to all other influences they receive 

 that of a living substance, and a living substance peculiarly and nicely 

 constituted. 



61. Illus. A SMALL BUD is taken from a sweet-apple tree, and in- 

 oculated in the limb of a sour tree ; both continue to grow, they receive 

 the same upward-moving sap, they hang in the same air, and each seems 

 to receive the same Elements ; but each possesses its own peculiar pow- 

 er, one producing sweet, and the other acid, fruit. 



62. LIVING SUBSTANCES THEREFORE POSSESS a secre- 

 tory or vital power of compounding ; and if the right 

 elements, in a proper condition, come under that influ- 

 ence, and other influences assist the process, peculiar and 

 valuable compounds are sure to be produced. 



63. VARIOUS SUCH COMPOUNDS ARE PRODUCED BY 

 PLANTS AND CALLED Organic or Proximate Elements, or 

 Principles, because it is from them that the animal tissues 

 and fluids are chiefly formed. 



64. ORGANIC DIFFER FROM CHEMICAL COMPOUNDS in 

 several respects, but in one very important particular. 



65. CHEMICAL COMPOUNDS ARE always definite, that 

 is, not only composed of the same Elements, but in the 

 same proportions, and the slightest change of propor- 

 tions changes the whole character ; so that the Chemical 

 compound must be made right, or not made at all. 



66. THE ORGANIC ELEMENT is ALWAYS COMPOSED 



58,59. To what ? 60. How ? 61. What said ? 62. What do ? 

 83. How ? 64. How ? 65. What ? 66. How - ? 



