Ketle Adolf. The social system and the laws governing it. Translated from French by Knyaz L.N. Shakhovska. P-Pb. Publishing house N. Polyakova and Co. 1866. 313p. In a composite binding with gold embossed on the spine. Reduced format. Adolf Ketle (1796-1874) - Belgian mathematician, astronomer, meteorologist and sociologist. One of the founders of scientific statistics. Visiting England, Scotland, Switzerland, Italy and Germany, Kettle, in 1832, took over the observatory built according to his plan in Brussels, and in 1834 was elected permanent secretaries of the Brussels Academy of Sciences. He also taught astronomy and geodesy and was Director of the Belgian Bureau of Statistics and Chairman of the Belgian Central Statistical Commission, established on his initiative. On the photo (stains, stains, tears of the root. understicking) more detailed on request
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