"When I view all beings, not as special creations, but as the lineal descendants of some few beings which lived long before the first bed of the Cambrian system was deposited, they seem to me to become ennobled.... There is grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the first law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved." THE END. LONDON: R. CLAY, SONS, AND TAYLOR, PRINTERS. * * * * * NATURE SERIES. POPULAR LECTURES AND ADDRESSES ON VARIOUS SUBJECTS IN PHYSICAL SCIENCE. By Sir WILLIAM THOMSON, D.C.L., LL.D., F.R.S.E., Fellow of St. Peter's College, Cambridge, and Professor of Natural Philosophy in the University of Glasgow. With Illustrations. 3 vols. Crown 8vo. Vol. I. CONSTITUTION OF MATTER. 6_s._ ON THE ORIGIN AND METAMORPHOSES OF INSECTS. By Sir JOHN LUBBOCK, Bart., F.R.S., M.P., D.C.L., LL.D. With numerous Illustrations. Third Edition. Crown 8vo. 3_s._ 6_d._ ON BRITISH WILD FLOWERS CONSIDERED IN RELATION TO INSECTS. By Sir JOHN LUBBOCK, Bart., F.R.S., M.P., D.C.L., LL.D. With Illustrations. Fourth Edition. Crown 8vo. 4_s._ 6_d._ FLOWERS, FRUITS, AND LEAVES. By Sir JOHN LUBBOCK, F.R.S., &c. Second Edition. Crown 8vo. 4_s._ 6_d._ THE TRANSIT OF VENUS. By G. FORBES, M.A., Professor of Natural Philosophy in the Andersonian University, Glasgow. Illustrated. Crown 8vo. 3_s._ 6_d._ THE COMMON FROG. By ST. GEORGE MIVART, F.R.S., Lecturer in Comparative Anatomy at St. Mary's Hospital. With numerous Illustrations. Crown 8vo. 3_s._ 6_d._ POLARISATION OF LIGHT. By W. SPOTTISWOODE, F.R.S. With Illustrations. Fourth Edition. Crown 8vo. 3_s._ 6_d._ THE SCIENCE OF WEIGHING AND MEASURING, AND THE STANDARDS OF MEASURE AND WEIGHT. By H. W. CHISHOLM, Warden of the Standards. With numerous Illustrations. Crown 8vo. 4_s._ 6_d._ HOW TO DRAW A STRAIGHT LINE: a Lecture on Linkages. By A. B. KEMPE. With Illustrations. Crown 8vo. 1_s._ 6_d._ LIGHT: A Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Light, for the Use of Students of every age. By A. M. MAYER and C. BARNARD. With numerous Illustrations. Crown 8vo. 2_s._ 6_d._ SOUND: A Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Sound, for the Use of Students of every age. By A. M. MAYER, Professor of Physics in the Stevens Institute of Technology, &c. With numerous Illustrations. Crown 8vo. 3_s._ 6_d._ SEEING AND THINKING. By Professor W. K. CLIFFORD, F.R.S. With Diagrams. Crown 8vo. 3_s._ 6_d._ DEGENERATION. By Professor E. RAY LANKESTER, F.R.S. With Illustrations. Crown 8vo. 2_s._ 6_d._