Equal altitude instruments and an equatorial sector

Equal altitude instruments and an equatorial sector.. The Earl of Ilay's Equal Altitude Instrument, Jeremiah Sisson's Equatorial Sector and Mr. Cote's Equal Altitude Instrument. Copperplate engraving by Wilson Lowry from Abraham Rees Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820

Altitude Cotes Cyclopedia Dictionary Equal Equatorial Hurst Jeremiah Longman Lowry Orme Rees Sector Sissons

Features In These Collections

> Contributors > FLO