INDEX 



151 



Iron, 17, 28 



and alumina, determina- 

 tion of, in soils, 143 

 pyrites, 20 



K 



Kainit, 58 

 Kelp, 124, 125 



manufacture of manure 



from, 101 

 Kieserite, 102 



Land-pebble phosphate, 37 



-plaster, 11 

 Laws, fundamental, 1 

 Lime, 4 



M 



Magnesium, 25 



determination of, in soils, 

 144 



Manganese, 29 

 determination of, in soils, 

 144 



Manufacture of superphos- 

 phate, 67 



Manures, 58 



Marcus, 87 



Marquinas, 91 



McKee, Ralph H., patent for 

 obtaining potassium 

 compounds from feld- 

 spar, 114 



Meal, bone, 55 

 Mill, hard rock, 49 

 Mineral phosphates, 61 

 Mixing machine, 70 

 Moisture, in fertilizers, 126 

 determination of, in soils, 

 141 



N 



Nitrates, 22 

 Nitrate, of soda, 84 



of lime, manufacture of, 95 

 Nitre, 88 

 Nitric acid, 88 

 Nitrifying organisms, 12 

 Nitrites, 12 

 Nitrogen, 2, 17, 22, 87 



determination of, in fer- 

 tilizers, 132 



determination of in soils, 

 146 



fixation of, 95 

 Nitrogenous manures, 87 

 Nitromonas, 12 

 Non-exhaustible elements, 30 

 Notodden, 97 



O 



Ore, phosphate, 37, 43 

 Organic nitrogenous material, 



58 

 Origin of soils, 15 



of phosphate ore, 52 

 Oxygen, 17 



