Details
[DODGSON, Charles Lutwidge ('Lewis Carroll')]. Formulae. [Oxford]: 19 March 1878. One page 8° (218 x 140mm). Cyclostyled. As issued, without wrappers.
RARE CYCLOSTYLED PIECE. ABPC records only the Falletta copy selling at auction (Christie's, 30 November 2005, lot 75). Dodgson acquired his 'electric pen' in 1877 and describes it in a letter dated 28 June 1877: it 'seems to be quite the best thing yet invented for taking a number of copies of MSS, drawings or maps. The "pen" consists of a needle, in a holder like a pencil: the needle is worked in and out with enormous rapidity by electricity and projects far enough to go through a thin sheet of paper... the paper thus prepared is placed in a frame with blank paper underneath, and an ink roller is passed [over it]... copies are easily worked off at a rate of 2 a minute'. This work consists of 18 formulas corresponding to the topics in section L of the pamphlet A Guide to the Mathematical Student in Reading, Reviewing, and Working Examples (1864). Mathematical Pamphlets 15; not in Williams, Madan, Green and Crutch.
RARE CYCLOSTYLED PIECE. ABPC records only the Falletta copy selling at auction (Christie's, 30 November 2005, lot 75). Dodgson acquired his 'electric pen' in 1877 and describes it in a letter dated 28 June 1877: it 'seems to be quite the best thing yet invented for taking a number of copies of MSS, drawings or maps. The "pen" consists of a needle, in a holder like a pencil: the needle is worked in and out with enormous rapidity by electricity and projects far enough to go through a thin sheet of paper... the paper thus prepared is placed in a frame with blank paper underneath, and an ink roller is passed [over it]... copies are easily worked off at a rate of 2 a minute'. This work consists of 18 formulas corresponding to the topics in section L of the pamphlet A Guide to the Mathematical Student in Reading, Reviewing, and Working Examples (1864). Mathematical Pamphlets 15; not in Williams, Madan, Green and Crutch.