It is now some sixteen or seventeen years since I became acquainted with the “Philosophie Positive” the “Discours sur l'Ensemble du Positivisme,” and the “Politique Positive” of Auguste Comte. I was led to study these works partly by the allusions to them in Mr. Mill's “Logic” partly by the recommendation of a distinguished theologian, and partly by the urgency of a valued friend, the late Professor Henfrey, who looked upon M. Comte's bulky volumes as a mine of wisdom, and lent them to me that I might dig and be rich. After due perusal, I found myself in a position to echo my friend's words, though I may have laid more stress on the “mine” than on the “wisdom.” For I found the veins of ore few and far between, and the rock so apt to run to mud, that one incurred the risk of being intellectually smothered in the working. Still, as I was glad to acknowledge, I did come to a nugget here and there; though not, so far as my experience went, in the discussions on the philosophy of the physical sciences, but in the chapters on speculative and practical sociology. In these there was indeed much to arouse the liveliest interest in one whose boat had broken away from the old moorings, and who had been content “to lay out an anchor by the stern” until daylight should break and the fog clear.