DIBDIN not only defined the symptoms of Bibliomania as a disease, but so systematized them that it may be said he reduced the disease to a science. He was born at Calcutta in 1776, and was educated at Oxford for the bar; but not finding law to his taste, he gave it up for the Church. From 1804 until his death, November 18th, 1847, he was professionally a clergyman of the Church of England, but his love for old and rare books made him a “bibliomaniac,” and perhaps the most celebrated of all bibliographers as well. His “Introduction to a Knowledge of the Rare and Valuable Editions of the Latin and Greek Classics” appeared in 1803, and in 1809 his “Bibliomania,”—deservedly the most popular of his works. He published also “The Library Companion” (1824), “Reminiscences of a Literary Life” (1836), and “Bibliographical, Antiquarian, and Picturesque Tour in the Northern Counties of England and Scotland” (1838).