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 in all the unaffected simplicity of his character, and as he appeared to his friends in the familiar intercourse of ordinary life.” (2.) Nine letters addressed to Lord Kames, and already published in Lord Woodhouselee’s Memoirs of that philosopher. These afford some suggestive thoughts on what we may style the metaphysics of physical science. This and the former body of letters, also illustrate Reid’s intelligent interest in the sciences of external nature, such as chemistry and mechanics, on their own account. (3.) A selection from upwards of twenty of Reid’s letters to his kinsman, the late Dr. James Gregory, Professor of the Practice of Medicine in the University of Edinburgh. Of these the most curious parts relate to the controversy on free-will, and to the theory of causation.

Stewart’s “Account of the Life and Writings of Reid,” is a work so well known to most of those in this country who are even moderately versed in the history of recent philosophy, that we need hardly occupy our readers upon anything like an abstract of its contents. A life of which the greater part was passed in the humble but agreeable seclusion of academical office successively in two Scottish provincial universities, cannot be expected to offer incident for the gratification of the lovers of brilliant external adventure, and must derive its interest from the peculiarities of the mental phenomena which it manifests, and the circumstances by which these were called forth, or amid which they struggled into action. Himself born in the commencement of the eighteenth century, Dr. Reid’s ancestors by the father’s side were for generations ministers of the Church of Scotland,