BY THE SAME AUTHOR.

LAY SERMONS, ADDRESSES, AND REVIEWS. 9th Edition. 8vo. 7s. 6d.

CRITIQUES AND ADDRESSES. 8vo. 10s. 6d.

STANDARD—"The whole book is well worthy of the reputation of a writer whom all, whether they agree or not with his views upon education and Darwinism, will admit is one of our foremost thinkers."

SCOTSMAN—"There is so much that is suggestive in the volume, so much that is valuable in the way of scientific information, and so much that is good in point of literary style, that the volume should be widely and generally read."

SCIENCE AND CULTURE, and other Essays. 8vo. 10s. 6d.

ACADEMY—"Some of these essays are among the most interesting of Professor Huxley's contributions to the literature of science."

WESTMINSTER REVIEW—"A most valuable contribution to literature, and at the same time an excellent enunciation of the relation of learning to science in general."

SOCIAL DISEASES AND WORSE REMEDIES: Letters to the "Times" on Mr. Booth's Schemes. With a Preface and Introductory Essay. 2d Edition. Crown 8vo. sewed. 1s. net.

MACMILLAN AND CO., LONDON.