IXDEX. 



301 



Motion, chemically induced in soil, . 

 Mould, vegetable, defined. 



" organic elements of, according to Berzelius 

 Muck, action on sand. 

 Mud, value of, . 



" compared with dung, . 



" of freshets, analysis of, . 

 Muriates, ..... 



source of, 



N. 



Nails, the, analysis of. 

 Nature, beneficence of, . 

 Neutral group of organic bodies, 

 Night-soil, table of analysis of, . 

 " Soubeiran's analysis of, 



'' composition of, 



*' *' nitrogen in, 



Nitrates, ..... 



" action of, . 



" in soil, source of, . . . 



•• of soda, its effects on grass. 

 Nitrification in soil, . . . . 



Nitric acid, action of on humic, 



" " " on humate of ammonia, . 



Nitre, composition of, . . . 



" one of the most active salts, 

 Nitro-humic acid, .... 

 Nitrogen in soil, . , . . 



" in sandy soil, 



" in geine, 



" in air, .... 



* source of, for roots and seeds, 



" in manure, 



" produced yearly by one cow, 



" action of, . 



" the chief enriching quality in manure, 



" the basis of ammonia, 



" in dung, source of, . 



fiojcno.v. 

 98 

 . 114 

 (p. 145) 



289 

 258, 259 

 259 

 284 

 170 

 84 



(p. 99) 



