Sextant

Sextant, an instrument used in navigation (sometimes also in land-surveying) for measuring the altitudes of celestial bodies and their angular distances; consists of a graduated brass sector, the sixth part of a circle, and an arrangement of two small mirrors and telescope; invented in 1730 by John Hadley.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Seward, William Henry * Seychelles
Seven Wonders of the World
Seven Years' War
Severn
Severus, L. Septimius
Sévigné, Madame de
Seville
Sèvres
Sèvres, Deux-
Seward, Anna
Seward, William Henry
Sextant
Seychelles
Sforza
Sgraffito
Shadwell, Thomas
Shafites
Shaftesbury, Anthony Ashley Cooper, Earl of
Shaftesbury, Anthony Ashley Cooper, Earl of
Shaftesbury, Anthony Ashley Cooper, seventh Earl of
Shah
Shah-Jehan

Nearby

Links here from Chalmers

Dollond, John