Five inch theodolite, 1866. A print from Cyclopaedia of Useful Arts, Mechanical and Chemical, Manufactures, Mining, and Engineering, edited by Charles Tomlinson, Volume II, Virtue and Co, London, 1866
Lazare Carnot, French politician, engineer, and mathematician, 1898. Artist: Gilbert
Lazare Carnot, French politician, engineer, and mathematician, 1898. A print from Les Francais Illustres, by Gustave Demoulin, Hachette, Paris, 1898
Pierre Gassendi, French philosopher, scientist, astronomer, and mathematician, 17th century. Artist: Claude Mellan
Pierre Gassendi, French philosopher, scientist, astronomer, and mathematician, 17th century. Appointed professor of mathematics at the College Royal, Paris, in 1645