 In their other courses, the work consisted of lectures and recitations in the ratio of three of the former to two of the latter, with outside reading from history and reference books.  Rusty Miller - Side 174av Joslyn Gray - 1919 - 248 siderUten tilgangsbegrensning - Om denne boken
 | John Lindley - 1839 - 652 sider
...of their materials of sustenance, varied proportions of oxygen and carbon, which, when apportioned in the ratio of three of the former to two of the latter, form oxalic acid, the presence of that agent in a plant, in contact with lime, can scarcely fail in... | |
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