Now the red and reddish brown soils contain most of their iron in the state of peroxide, or the reddish brown oxide of iron ; while the light grey soils contain it only in the state of protoxide, or the black oxide of iron. I believe the quality of the... Journal of the Asiatic Society of Bengal - Page 3151836Full view - About this book
| Agricultural & Horticultural Society of India - 1837 - 346 pages
...most of their iron in the state of peroxide, or the reddish brown oxide of iron ; while the light grey soils contain it only in the state of protoxide, or...tobacco to depend mainly on the state and quantity VOL. III. * E s . f. of the iron in the soil; while it is indifferent about the lime which we have... | |
| 1837 - 682 pages
...most of their iron in the state of peroxide, or the reddish brown oxide of iron ; while the light grey soils contain it only in the state of protoxide, or the black oxide of iron. 1 believe the quality of the tobacco to depend mainly on the state and quantity of the iron in the... | |
| Great Britain. Parliament. House of Commons - Bills, Legislative - 1874 - 526 pages
...most of their iron in the state of peroxide, or the reddish brown oxide of iron ; while the light grey soils contain it only in the state of protoxide, or...; while it is indifferent about the lime, which we haveseen is so essential to cotton. None of these tobacco soils contain any lime. Their analysis shows... | |
| 1836 - 568 pages
...are red soils, and those of Manilla, I know, are also red soil. Now the red and reddish brown soils contain most of their iron in the state of peroxide,...the quality of the tobacco to depend mainly on the slate and quantity of the iron in the soil j while it is indifferent about the lime, which we have... | |
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