HERSCHEL, WILLIAM.

Observations on the Nature of the new celestial Body discovered by Dr. Olbers, and of the Comet which was expected to appear last January in its return from the Sun.

(London, Bulwer and Co., 1807). Large 4to. Without wrappers as extracted from "Philosophical Transactions of the Royal Society of London." Year 1806-Part I. Pp. 260-266 a. 1 engraved plate.

In the paper Herschel estimates the size of Vesta which was discovered a few month before by Olbers. Together with Ceres, Pallas and Juno, he names this new heavenly bodies, asteroids.
Together with Herschel's paper comes William Hasledine Pepys "A new Eudiometer, acccompanied with Experiments, elucidating its Application", pp. 247-259 a. 1 engraved plate.

Order-nr.: 45982