Among the many outstanding features of Professor Stout's Gifford Lectures, Mind and Matter, there are two which possess special interest to readers of Philosophy: the author”s exposition of a more definite Realism than has been presented in his earlier works, and a renewed defence of the much-maligned faculty, Common Sense, here regarded as “a social product maintained and transmitted from generation to generation through the co-operation and conflict of many minds in thinking and willing ” (p. 8).