Bulletin - Bureau of Chemistry, Τεύχη 20-29U.S. Government Printing Office, 1889 |
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Αποτελέσματα 1 - 5 από τα 78.
Σελίδα 16
... DETERMINATION OF THE ASH . ARENDT AND KNOP . Grasuntersuchungen . Die Versuchs - Stationen , 11 , 1860 , 37 : Fifteen to twenty - five grams incinerated in platinum or silver dish , moistened several times with water , each time dried ...
... DETERMINATION OF THE ASH . ARENDT AND KNOP . Grasuntersuchungen . Die Versuchs - Stationen , 11 , 1860 , 37 : Fifteen to twenty - five grams incinerated in platinum or silver dish , moistened several times with water , each time dried ...
Σελίδα 21
... determination of sugar and starch , the difference giving saccharified fiber . C. BRIMMER . Die Versuchs - Stationen , XXVII , 1881 , 389 : A determination by ex- traction of bran with water , and conversion of starch to sugar by ...
... determination of sugar and starch , the difference giving saccharified fiber . C. BRIMMER . Die Versuchs - Stationen , XXVII , 1881 , 389 : A determination by ex- traction of bran with water , and conversion of starch to sugar by ...
Σελίδα 22
... determination of solids extracted . G. KÜHN . Untersuchungsmethoden . Die Versuchs - Stationen , XXIX , 1883 , 8 : In the case of a long series of analyses in connection with digestion experiments , dries the substance in hydrogen ...
... determination of solids extracted . G. KÜHN . Untersuchungsmethoden . Die Versuchs - Stationen , XXIX , 1883 , 8 : In the case of a long series of analyses in connection with digestion experiments , dries the substance in hydrogen ...
Σελίδα 23
... DETERMINATION OF THE ASH . Is the carbon dioxide subtracted in calculating pure ash ? DETERMINATION OF THE ETHER - EXTRACT . How long was the substance dried previous to extraction ? Dried till weight constant ? Dried in boiling water ...
... DETERMINATION OF THE ASH . Is the carbon dioxide subtracted in calculating pure ash ? DETERMINATION OF THE ETHER - EXTRACT . How long was the substance dried previous to extraction ? Dried till weight constant ? Dried in boiling water ...
Σελίδα 26
... determination of this constit- uent , except in connection with the preparation of the substance for the ether ex- traction . But reference to the best authorities and practice satisfies me that the desiccation should be performed at or ...
... determination of this constit- uent , except in connection with the preparation of the substance for the ether ex- traction . But reference to the best authorities and practice satisfies me that the desiccation should be performed at or ...
Άλλες εκδόσεις - Προβολή όλων
Bulletin - Bureau of Chemistry, Τεύχη 125-134 United States. Bureau of Chemistry Πλήρης προβολή - 1909 |
Bulletin - Bureau of Chemistry, Τεύχη 110-115 United States. Bureau of Chemistry Πλήρης προβολή - 1908 |
Συχνά εμφανιζόμενοι όροι και φράσεις
acre adulteration Agriculture alcohol alkali amount analyses apparatus average beets boiling Brix butter cane carbonate cells cent chemical chemists clarified contained Conway Springs crop cubic centimeters cultivation culture determination diffusion battery diffusion juice dilution distillation Early Amber Early Orange ether evaporation exhausted chips Experiment Station extraction factory fertilizers filter flask Glucose grams grown heated improved inches inversion Kansas kilograms Kjeldahl method lime loss manufacture manure massecuite means method milk mill juice molasses nitrate nitric acid nitrogen normal juice obtained October percentage phosphoric acid plant plots plowing polariscope potash pounds produced pulp purity quantity roots samples saponification season Second sugar seed selection Sept September sirup soda soil solution sorghum specific gravity substance sucrose sugar-beet sugar-house sulphuric acid superphosphate temperature tion tons Total solids tube varieties volatile acids washing weight Wiley yield
Δημοφιλή αποσπάσματα
Σελίδα 77 - ... artificial, with experiments designed to test their comparative effects on crops of different kinds; the adaptation and value of grasses and forage plants; the composition and digestibility of the different kinds of food for domestic animals; the scientific and economic questions involved in the production of butter and cheese; and such other researches or experiments bearing directly on the agricultural industry of the United States as may in each case be deemed advisable, having due regard...
Σελίδα 76 - AN ACT To establish agricultural experiment stations In connection with the colleges established In the several States under the provisions of an act approved July second, eighteen hundred and sixty-two, and of the acts supplementary thereto...
Σελίδα 77 - That it shall be the object and duty of said experiment stations to conduct original researches or verify experiments on the physiology of plants and animals; the diseases to which they are severally subject, with...
Σελίδα 220 - ... avoiding the useless saturation of the caustic potash solution. When the flow of carbonic acid has very nearly or completely ceased, pass the delivery tube down into the receiving arm, so that the bubbles will escape into the azotometer. Light the jets under the...
Σελίδα 7 - Report on the culture of the sugar beet and the manufacture of sugar therefrom in France and the United States.
Σελίδα 42 - This fat will not usually be clear; this however, will make no difference in the result, as the subsequent treatment will clarify it. As soon as the bottles have been sufficiently whirled, they should be filled to the neck with hot water. This is most conveniently done by placing a vessel containing boiling water above the machine, and by means of a syphon, made from a small rubber tube with a glass tip, run the water directly into the bottles without removing them from the wheel.
Σελίδα 72 - Vilmorin is manufactured in connection with other varieties it is the custom to reserve this for the end of the season and to work up the less reliable beets at an earlier date. It is also said to resist better than any other variety the unfavorable influence of certain characters of soil and of certain manures. In black soils, rich in organic matter, it will give great industrial results, while most other varieties of beets become watery or saline in excess.
Σελίδα 222 - If the mixture froth badly, a small piece of paraffin may be added to prevent it. The heat is then raised until the acid boils briskly. No further attention is required till the contents of the flask have become a clear liquid, which is colorless, or at least has only a very pale straw color.
Σελίδα 42 - An even number of bottles should be whirled at the same time, and they should be placed in the wheel in pairs opposite to each other, so that the equilibrium of the apparatus will not be disturbed. When all of the test bottles are placed in the apparatus, the cover is placed upon the...
Σελίδα 44 - ... reading can easily be taken to half divisions or to one-tenth per cent. If the column of fat is less than about one division, as will sometimes happen with skimmilk, buttermilk or whey it may assume a globular form instead of a uniform layer across the tube; when this occurs the fat can usually be estimated with sufficient accuracy by simple inspection, but if an accurate reading is desired it may be obtained by taking four samples of the milk in four test bottles, and after treating them in...