 | 1850 - 442 стор.
...an inch in thickness. This was filtered through sand, and came out perfectly clear and colourless. Organic matter dissolved in oil of vitriol was separated...was by the same process deprived of nearly all its colour. The material of which this filter is made is of little importance. One of the best, according... | |
 | 1850 - 432 стор.
...inch in thickness. This was filtered through sand, and came out perfectly clear and colourless. • Organic- matter dissolved in oil of vitriol was separated...was by the same process deprived of nearly all its colour. The material of which this filter is made is of little importance. One of the best, according... | |
 | Perry Fairfax Nursey - 1850 - 548 стор.
...an inch in thickness. This was filtered through sand, and came out perfectly clear and colourless. Organic matter dissolved in oil of vitriol was separated...of stratum of only four inches. A bottle of porter wai by the same process deprived of nearly all its colour. The material of which this niter is made... | |
 | 1850 - 1150 стор.
...an inch in thickness. This was filtered through sand, and came out perfectly clear and colourless. Organic matter dissolved in oil of vitriol was separated...of stratum of only four inches. A bottle of porter wae by the some process deprived of all its colour. The material of which this filter is made is of... | |
 | 1850 - 554 стор.
...through sand, and came out perfectly clear and colourless. Organic matter dissolved in oil of vitriol waa separated from it by a thickness of stratum of only four inches. A bottle of porter wia by the same process deprived of nearly all its colour. The material of which this filter ii made... | |
 | 1851 - 474 стор.
...to show the filtering power of the soil. A very dark solution of peaty matter was made in ammonia ; this was filtered through sand, and came out perfectly...is made is of little importance. One of the best, so far as clearing the water is concerned, is composed of steel filings, oxide of iron, oxide of manganese,... | |
 | 1851 - 470 стор.
...character were adduced, to show the filterpower of the soil. A very dark solution of peaty matter was ; this was filtered through sand, and came out perfectly...all its color. The material of which this filter is mode is of little importance. One of the best, so far as clearing the water is concerned, is composed... | |
 | 1851 - 656 стор.
...an inch in thickness. This was filtered through sand, and came out perfectly clear and colourless. Organic matter dissolved in oil of vitriol was separated...was by the same process deprived of nearly all its colour. The material of which this filter is made is of little importance. One of the best, according... | |
 | 1851 - 472 стор.
...clear and colorless. Organic matter dissolved in oil of vitriol was separated from it by a tliickness of stratum of only four inches. A bottle of porter...of nearly all its color. The material of which this Alter is made is of little importance. One of the best, so far as clearing the water is concerned,... | |
 | 1850 - 964 стор.
...in ammonia ; the solution was very dark, so that some color was perceived through a film of only the twentieth of an inch in thickness. This was filtered...clearing the water is concerned, being of steel filings, — oxyd of iron, oxyd of manganese, and powdered bricks all answering equally well. This shows that... | |
| |
Organic matter dissolved in oil of vitriol was separated from it by a thickness of stratum of only four inches. A bottle of porter was by the same process deprived of nearly all its color. 