176 RECAPITULATION 



Oxygen, a gas, colorless, tasteless, inodorous, not 

 inflammable; supports combustion most energetically; 

 supports life, both animal and vegetable; unites with 

 nearly all other bodies, and forms oxides; most abun 

 dant of all known substances. - O> %^_ 



Nitrogen, colorless, tasteless, inodorous; does not 

 support combustion; does not burn itself; does not 

 maintain life. J^ jL f - 



The great importance, and the vast diffusion of these 

 bodies. 



CHAPTER IL 



The inorganic part of the plant. 



Consists of potash, soda, lime, magnesia, oxide of 

 iron, oxide of manganese, silica, chlorine, sulphuric 

 acid (oil of vitriol), phosphoric acid. 



1. Potash, common potash, pearlash, caustic potash. _.. 



2. Soda, caustic soda, carbonate of soda, for wash 



ing. ---- J&.. Jl.VU. 



3. Lime, quicklime, common limestone, plaster of 



paris, marls generally. - *-, 2.1.^ 



4. Magnesia, calcined magnesia, epsom salts (sul 



phate of magnesia). - c ^$," l *-W-* 



5. Oxide of iron, common iron rust. ... - Pe. . i 7- /Jt 



6. Oxide of manganese, commercial black oxide of 



manganese. -- cM^,- JJ-^-_ 



7. Silica, common quartz, flint, agate, cornelian, chal 



cedony. - <&'. Z2.//y , 



8. Chlorine, a gas; of a green color, heavy, suffo 



cating odor ; does not burn, but some metals 

 when finely powdered, inflame in it. ~^-^. Gl. 



9. Sulphuric acid, common oil of vitriol. -^O^J^Oj^, < 

 10. Phosphoric acid ; burn common phosphorusTa * 



white, very sour powder. - __ -^3/.3^, j jp 

 These are all present, in cultivated crops^ t 

 usually not in large quantity. 



