A Letter to the Board of Visitors of the Greenwich Royal Observatory in Reply to the Calumnies of Mr. Babbage at Their Meeting in June 1853, and in His Book Entitled the Exposition of 1851

A Letter to the Board of Visitors of the Greenwich Royal Observatory in Reply to the Calumnies of Mr. Babbage at Their Meeting in June 1853, and in His Book Entitled the Exposition of 1851