Karl Lenski, Colette van der Stricht, Karl Ventzke.Livre Rare Book
A Description of a Vertical Floating Collimator; and an account of its application to astronomical observations .
1828réf. 1018London: R Taylor 1828. OFFPRINT. Original plain blue wrappers. Very good. 4to 2 - title page 257 - 289 paginated 1 - blank pp. 2 steel engraved plates. This a separately issued offprint retaining the original pagination. Kater was a member of the Royal Engineers. He devised and built a number of geodetic instruments for the accurate determination of the longitude and acceleration of gravity see Turner. But his most important contribution to scientific instrumentation is the device described in this offprint. The collimator permitted the alignment of a telescope attached to a circle in any position of the instrument with negligible error. See Lenzen & Multhauf on Kater's instruments. R Taylor unknown books
Palinurus Antiquarian Books · États-Unis450,00 $US≈ 402,04 €
