 | American Mathematical Society - Mathematics - 1899 - 574 pages
...third volumes, which may be expected to be rich in facts relative to the history of mathematics in the second half of the seventeenth and the first half of the eighteenth century. A MANUSCRIPT treatise on geometry by Lobatschewsky of earlier date than any of his published works... | |
 | Peter Kriedte, Hans Medick, Jurgen Schlumbohm - History - 1982 - 356 pages
...disregarded with impunity. In England, conditions were much more favourable. Here the agrarian crisis of the second half of the seventeenth and the first half of the eighteenth centuries was averted by decisive advances in productivity, namely the introduction of convertible... | |
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This is another factor which may have caused local cultivation of grain to increase in the second half of the seventeenth and the first half of the eighteenth century. 
