Elements, Symbols and Analyses. 187 



Analyses, continued. 



56. Coal-ashes, Anthracite. 



Water 5.0 Soda o.i 



Organic Substance ..... 5.0 Magnesia 3.0 



Ash 90. o Phosphoric acid o. i 



Potash o. i Sulphuric acid . . 5.0 



57. Gas Lime Average of 4. Analyses 



Moisture at 100 C 22.28 Sulphuric acid* 20.73 



Calcium oxide 42.66 Insoluble matter 6.05 



Magnesium oxide 8.30 



* Sulphuric acid includes all forms of sulphur present. 



(<?.) TRADE VALUES FOR 1889 OF FERTILIZING INGREDIENTS 

 IN RAW MATERIALS AND CHEMICALS. ADOPTED BY EXPER- 

 IMENT STATIONS OF MASS., NEW JERSEY, PENN. AND CONN. 



Cts.~ 

 per Ib. 

 Nitrogen in ammonia salts 19 



nitrates 17 



Organic nitrogen in dry and fine ground fish, meat and 



blood 19 



" " cotton seed meal and castor-pomace. 15 



*' " fine bone and tankage .16^ 



fine medium bone and tankage 13 



' medium bone and tankage io^ 



" ' ' coarser bone and tankage S)4 



" " in hair, horn shavings and coarse fish. 



scrap 8 



Phosphoric acid, soluble in water 8 



11 " ammonium citrate. ... 7^ 



11 ' dry ground fish, fine bone and 



tankage 7 



" " fine-medium bone and tankage 6 



' " medium bone and tankage ... 5 



" coarser bone and tankage .... 4 



14 fine ground rock phosphate . . 2 



