 | Repertory of arts, manufactures and agriculture - 1805 - 534 páginas
...contains ; these substances being always most abundant in the lighter soils. '••••.• The other physical properties of soils should likewise...guides in directing the experiments. Thus siliceous soilj are generally rough to the touch, and scratch glass when rubbed upon it ; aluminous soils adhere... | |
 | Friedrich Christian Accum - 1808 - 492 páginas
...vegetable matter it contains 5 these substances being always most abundant in the lighter soils. The other physical properties of soils should likewise...the touch, and scratch glass when rubbed upon it; aluminous soils adhere strongly to the tongue, and emit a strong earthy smell when breathed on ; and... | |
 | William Nicholson - 1808 - 900 páginas
...vegetable matter it contains, the*e substance* being always most abundant in the lighter soils. The other physical properties of soils should likewise be examined before the analysis i» made, as they denote, to a certain extent, their composition, and serve as guide* in directing... | |
 | William Thomas Brande - 1821 - 666 páginas
...vegetable matter it contains ; these substances being always most abundant in the lighter soils. " The other physical properties of soils should likewise...of a red or yellow colour; and calcareous soils are soli. " 1. Soils, though as dry as they can be made by continued exposure to air, in all cases still... | |
 | Andrew Ure - 1821 - 436 páginas
...vegetable matter it contains ; these substances being always most abundant in the lighter soils. The other physical properties of soils should likewise...to the touch, and scratch glass when rubbed upon it : aluminous soils adhere strongly to the tongue, and emita strong earthy smell when breathed upon :... | |
 | Andrew Ure - 1821 - 436 páginas
...vegetable matter it contains; these substances being always most abundant in the lighter soils. The o. her physical properties of soils should likewise be examined...composition, and serve as guides in directing the experiment . Thus siliceous soils are generally rough to the touch, and scratch glass when rubbed upon... | |
 | John Claudius Loudon - 1822 - 1494 páginas
...vegetable matter it contains ; these substances being always most abundant in the lighter soils. The other physical properties of soils should likewise...and serve as guides in directing the experiments. Tims siliceous soils are generally rough to the touch, and scratch glass when rubbed upon it ; ferruginous... | |
 | F. ACCUM - 1828 - 526 páginas
...vegetable matter it contains, these substances being always most abundant in the lighter soils. The other physical properties of soils should likewise...the touch, and scratch glass when rubbed upon it; argillaceous soils adhere strongly to the tongue, and emit a strong earthy smell when breathed qn ;... | |
 | William Thomas Brande - 1830 - 784 páginas
...vegetable matter it contains ; these substances being always most abundant in the lighter soils. " The other physical properties of soils should likewise...or yellow colour ; and calcareous soils are soft. u 1. Soils, though as dry as they can be made by continued exposure to air, in all cases still contain... | |
 | Andrew Ure - 1831 - 980 páginas
...vegetable matter it contains ; the« e substances being always most abundant in the lighter soils. The other physical properties of soils should likewise...the touch, and scratch glass when rubbed upon it; aluminous soils adhere strongly to the tongue, and emit a strong earthy smell when breathed upon ;... | |
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It is of importance that the specific gravity of a soil should be known, as it affords an indication of the quantity of animal and vegetable matter it contains; these substances being always most abundant in the lighter soils. The other physical properties... 
