The Encyclopedia Americana: A Library of Universal Knowledge ...Encyclopedia Americana Corporation, 1924 |
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Zadetki 1–3 od 70
Stran 84
... present to serve as food for the plant . A very pure form of acetic acid is pre- pared by subjecting alcohol to the powerful oxidizing action of spongy platinum hung above it in abundance of air . The platinum absorbs oxygen and alcohol ...
... present to serve as food for the plant . A very pure form of acetic acid is pre- pared by subjecting alcohol to the powerful oxidizing action of spongy platinum hung above it in abundance of air . The platinum absorbs oxygen and alcohol ...
Stran 244
A Library of Universal Knowledge ... phosphates . Potassium and calcium are present as salts of inorganic and of organic acids . Iron , magnesium and manganese occur in or- ganic combination , magnesium being present in the green ...
A Library of Universal Knowledge ... phosphates . Potassium and calcium are present as salts of inorganic and of organic acids . Iron , magnesium and manganese occur in or- ganic combination , magnesium being present in the green ...
Stran 275
... present may be even greater than this . In country air the percentage of carbon dioxide is subject to a diurnal change amounting to about one - eighth of its total amount , more being present at night than in the daytime . This is ...
... present may be even greater than this . In country air the percentage of carbon dioxide is subject to a diurnal change amounting to about one - eighth of its total amount , more being present at night than in the daytime . This is ...
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Abyssinia Academy acetic acid acid Adams advertising aeroplane Africa agricultural Alabama Alaska Albany Alberta alcohol aldehyde Alexander algebra Algeria American ancient animals appointed army beauty became brake cylinder brake pipe British caliph called capital cent centre century chief Church coal coast College colonies Consult court crops death developed east Egypt Emperor engine England English equation established farm father feet France French German Greek Herat important industry islands Italy Kabul Kandahar King known Kongo labor Lake land later Latin London manufacture ment modern mountains organized Paris Persian person plants pressure Professor province railroads railway region River Roman Rome Royal Russia Saint Saint Petersburg Sicily Society southern Spain square miles territory tion town trade treaty United University valve vols York Yukon