r::?DEX. 295 



Grain, crops of, in Massachusetts, 



" northern boundary of, 



" failure of, in Iceland, . • 



" ** " cause of, . 



" temperature " of germination, 



Granite, formation of, . 



" composed of, . . , 



Guano, great quantity of, 



" analyses of, . 



" an article of commerce, 



" Johnston's average table of, 



" table of various analyses of, 



" proportion to be used, 



" use of, .... 



" ammonia in, . 



♦* varieties of, . 



" and superphosphates, 

 Gypsum, application of, . 



" action of, . 



H. 



Hair, analysis of, ... 



Hair, fertilizing power of, . 

 Hay, action of catalysis on, 



*' yield of by various salts, 

 Hayes, Dr., on chlorides in rocks. 

 Heat, absorbed by soils. 

 Hen, food of, . 



*^ " analysis of, . 



" eggs of, " . 



" excrements of, " . . . 



" " salts in, 



" " and superphosphates, . 



" agricultural value of, 

 Hog manure, . . . . 



" " value of, . 



" " contents of, . . , 



" urine, analysis o^ . • . 



Horn, analysis of, , . • 



