ORIGIN OF SPECIES BY MEANS OF NATURAL SELECTION; or, THE PRESERVATION OF FAVORED RACES IN THE STRUGGLE FOR LIFE. New and revised edition, with Additions. 12mo. Cloth, $2.00. DESCENT OF MAN, AND SELECTION IN RELATION TO SEX. With many Illustrations. A new edition. 12mo. Cloth, $3.00. JOURNAL OF RESEARCHES INTO THE NATURAL HISTORY AND GEOLOGY OF THE COUNTRIES VISITED DURING THE VOYAGE OF H. M. S. BEAGLE ROUND THE WORLD. A new edition. 12mo. Cloth, $2.00. EMOTIONAL EXPRESSIONS OF MAN AND THE LOWER ANIMALS. 12mo. Cloth, $3.50. THE VARIATIONS OF ANIMALS AND PLANTS UNDER DOMESTICATION. With a Preface, by Professor ASA GRAY. 2 vols. Illus trated. Cloth, $5.00. INSECTIVOROUS PLANTS. 12mo. Cloth, $2.00. MOVEMENTS AND HABITS OF CLIMBING PLANTS. With Illustrations. 12mo. Cloth, $1.25. THE VARIOUS CONTRIVANCES BY WHICH ORCHIDS ARE FERTILIZED BY INSECTS. Revised edition, with Illustrations. 12mo. Cloth, $1.75. THE EFFECTS OF CROSS AND SELF FERTILIZATION IN THE VEGETABLE KINGDOM. 12mo. Cloth, $2.00. DIFFERENT FORMS OF FLOWERS ON PLANTS OF THE THE POWER OF MOVEMENT IN PLANTS. BY CHARLES Dar- 12mo. THE FORMATION OF VEGETABLE MOULD, THROUGH THE ACTION OF WORMS. With Observations on their Habits. With Iltrations. 12mo. Cloth, $1.50. For sale by all booksellers; or sent by mail, post-paid, on receipt of price. New York: D. APPLETON & CO., 1, 3, & 5 Bond Street. |