DOLLOND, PETER.

An Account of an Apparatus applied to the equatorial Instrument for correcting the Errors arising from the Refraction in Altitude. Read March 4, 1779.

(London, J. Nichols, 1779). 4to. Extract from "Philosophical Transactions, of the Royal Society of London." Vol. 69, Year 1779 - Part II. Pp. 332-336 and 1 engraved plate showing apparatus.

Order-nr.: 44513