(Berlin, Haude et Spener, 1751). 4to. No wrappers, as issued in "Mémoires de l'Academie Royale des Sciences et Belles-Lettres", tome V, Année 1749, pp. 339-372, 1 folded geometrical plate (to the first paper) and 3 fine double-page folded engraved plates showing the quadrant.
Kies was one of the first to propagate Newton's discoveries in Germany, and dedicated two of his works to the Englishman. The crater Kies on the Moon is named after him.
The paper on the instrument describes and depicts the large quadrant in the Berlin observatory invented by Hadley (described in Transactions of the Royal Society in 1732).
"From 1742 to 1754, at the recommendation of the mathematician Leonhard Euler, he (Kies) was made professor of mathematics at Berlin's Academy of Sciences and astronomer at its observatory. His reports from this time include De la Situation la plus avantageuse des planètes pour découvrir les irrégularités de leurs mouvemens, Sur les Éclipses des étoiles fixes par la lune, and Description d'un instrument qui se trouve ."
Order-nr.: 42770