En
Ru| Title | The case of consideration in the Free Economic Society of works: Puymorena "On the newly invented threshing machine"; Valberga "On the cultivation of sugar maple in Russia and the product of that sugar" and "On new observations that contribute to the improvement of crop cultivation" |
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| Series | Cases of the department of public education at the censorship |
| Fonds | Department of Education of the Ministry of Education |
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