SCIENTIFIC WORKS
7
| 5. Geology. By Archibald Geikie, LL. D., F. R. S.Flexible Cloth, | $50 |
| 6. Physiology. By M. Foster, M. A., M. D., F. R. S.Flexible Cloth, | 50 |
| 7. Astronomy. By J. Norman Lockyer, F. R. S.Flexible Cloth, | 50 |
| 8. Botany. By Dr. J. D. HookerFlexible Cloth, | 50 |
| (Others in preparation.) | |
| SPENCER (HERBERT). Education, Intellectual, Moral, and Physical. 12mo.Cloth, | 1 25 |
| First Principles. 12mo.Cloth, | 2 50 |
| Essays: Moral, Political, and Æsthetic. 1 vol., 12mo.Cloth, | 2 50 |
| Illustrations of Universal Progress. A Selection of his Best Papers. 1 vol., 12mo.Cl., | 2 50 |
| Social Statics; or, the Conditions essential to Human Happiness specified, and the first of them developed. 1 vol., 12mo.Cloth, | 2 50 |
| The Principles of Biology. 2 vols., 12mo.Cloth, | 5 00 |
| The Principles of Psychology. 2 vols., 12mo.Cloth, | 5 00 |
| Half Calf, | 9 00* |
| Philosophy of Style. 12mo.Flexible Cloth, | 50 |
| Recent Discussions in Science, Philosophy, and Morals. New and enlarged edition. 12mo.Cloth, | 2 00 |
| Works. 10 vols., 8vo.Half Calf, | 44 00* |
| Sociology. 1 vol., 12mo.Cl., | 1 50 |
| Descriptive Sociology, or Groups of Sociological Facts, classified and arranged by Herbert Spencer. Compiled and abstracted by David Duncan, M. A., Professor of Logic, etc., in the Presidency College, Madras, Richard Scheppig, Ph. D., and James Collier. To be published in Parts, folio, boards. To subscribers, for the whole work, per Part | $3 50* |
| Single Parts | 4 00* |
| Now ready: | |
| No. 1, Division III., Part I. C. English. Compiled and abstracted by James Collier. | |
| No. 2, Division II., Part I. B. Ancient Mexicans, Central Americans, Chibehos, and Ancient Peruvians. Compiled and abstracted by Richard Scheppig, Ph. D. | |
| No. 3, Division I., Part I. A. Types of the Lowest Races. Negritto Races. Malayo-Polynesian Races. Compiled and abstracted by Prof. David Duncan. | |
| No. 4, Division I., Part II., A. African Races. Compiled and abstracted by Prof. David Duncan. | |
| The balance of the work in active preparation. | |
| Principles of Sociology. Issued in Quarterly Numbers of eighty pages each. (Subscription), per annum. | 2 00* |
| Per number, | 60 |
| STEVENSON (S. H.) Boys and Girls in Biology; or, Simple Studies of the Lower Forms of Life, based upon the Latest Lectures of Prof T. H. Huxley, and published by his permission. By Sarah Hackett Stevenson. Illustrated by Miss M. A. I. Macomish. 1 vol., 12mo.Cloth, | 1 50 |
| TOMMY TRY, and What He Did in Science. With 46 Illustrations 1 vol., 12mo.Cloth, | 1 50 |
| TYNDALL (Prof JOHN). Heat as a Mode of Motion. 1 vol., 12mo. New edition.Cloth, | 2 00 |
