The Sir William Dawson Pamphlet Collection was acquired in 1901 with the rest of his library. Dawson (1820-1899) was an eminent nineteenth-century geologist and Principal of McGill University (1854-1893). The collection consists of some 1762 items in thirty-one bound volumes and fifty-one pamphlet boxes. It includes off-prints and pamphlets on scientific subjects a substantial number of which bear presentation inscriptions. Sixteen pamphlet boxes contain items by Dawson himself and one box material about him. There are a few letters bound in.