APPENDIX. 457 



The latter constituent is, however, of comparatively little 

 importance. The farmer who purchases his artificial fer- 

 tilizers without a skillful and well attested analysis, is at the 

 mercy of the ignorant or unscrupulous dealer. 



1 046. Glycerine = C 6 H e O c . 



fStearic Acid^CesHeeOe, 2HO=St, 2HO. 

 1047.<{Margaric Acid^Cs^ssOs, HO. 



[Oleic Acid^CseHssOa, HO. 



$Urea=C 2 N 2 H 4 3 . 



I Uric Acid=CioN4H 3 5 +HO. 



