De Morgan Library
Almost 3,800 items on mathematics and its history, printed between 1474 and 1870, predominantly in English. Arithmetic is especially well represented, but algebra, geometry, trigonometry, calculus, logarithms, probability, annuities, functions, astronomy and, to a far lesser extent, mechanics are all present. The collection includes multiple editions of popular or significant works, most notably Euclid’s Elements, and numerous bound pamphlets. Mathematical and astronomical landmarks jostle with obscure titles. Several items are extremely rare or, indeed, unique. De Morgan’s annotations enhance a significant minority. This is the Library’s founding collection.