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418 For political reasons, probably, there was no regular correspondence until 1697. Meanwhile Leibniz had interested many scholars in his project, among them Count von Dunckelmann, in whose parlors scientific meetings had been held in Berlin for ten years. Jabloniski, a Bohemian by birth, court preacher in Berlin, a man of great knowledge and natural ability, was one of the most efficient aids which Leibniz had in bringing the academy into existence. Much had been said about establishing an observatory in the Prussian capital. The wife of the elector exerted all her influence in favor of it as early as 1697. From this time on the clearly formed plans for an academy with which the observatory should be connected were carefully discussed. In a letter to the Princess Charlotte, dated December 19, 1697, Leibniz writes that he has been invited to Berlin, 'the cradle of the arts and sciences,' where 'Solomon and the Queen of Sheba are.' While on a long visit in Hannover during the summer of 1698 the princess had opportunity to discuss with Leibniz, unhindered, their plans for an academy and scientific institute in Berlin. Jabloniski was sent to Hannover by the elector to see Leibniz and returned to Berlin greatly impressed with his ability, and urged the elector to invite him to the city. This was done through the Princess Charlotte. For more than a year little progress in founding the academy was made, though the leading scholars of Berlin desired it. Means for its support were wanting. Aid came from an unexpected source. Professor Erhard Weigel, of Jena, was anxious to correct the calendar, and Leibniz at once saw that if this corrected calendar were made a monopoly the cost of an academy could be paid out of the profits on its sale. Messrs. Rabener, Curveau and Jabloniski memorialized the elector, the monopoly was granted and an order for the formation of an academy, with which the observatory was united, was issued on the day the memorial was presented. Leibniz, who had recently been made a member of the French Academy, was appointed its president. On January 18, 1701, Prussia became a kingdom and the elector a king.

The academy began its life under favorable circumstances. Although the means of support were inadequate, the ideas of the men who formed it were large and comprehensive. The plans then made, visionary as they seemed to some, have since been fully realized. Councilor Albinus, Chauvin, Dr. Jaegewitz, Naudi, the mathematician, Chief Engineer Baer, Privy Councilors Rabener and Cuneau, and Jabloniski, the court preacher, made up the eight who with Leibniz formed it. They were all imbued with the spirit and the ideas of the president. The academy was to be a place where the study of physics, chemistry, astronomy, geometry, mechanics, optics, algebra and similar useful subjects should be furthered. Not all of these branches of study were to be pushed at once, no one of them until men eminent in each