CHARLES DARWIN'S COMPLETE WORKS.— {Continued':) 



Insectivorous Plants. 12nio. Cloth, $2.00. 



"In tliis work Mr. I'arwii:"s patient and painstaking methods of investigation appear to the 

 best posj'ihle advantaj;e. It is impossible to read it without eiithusiastic admiration for the inge- 

 nuity which he displays in devising tests to determine the characteristics of the plants, the pecul- 

 iarities of wliic'.i he is ptudying, and, as is always the case with him. he presents the conclusions 

 arrived at in lanauage so lucid that he who reads simply for inlormation is sure to be attracted and 

 charmed quite as much as the professional student."— A^ Y. Times. 



Movements and Habits of Climbing Plants. With Illustrations. 12mo. 



Cloth, $1.25. 



"The most interesting point in the natural history of climbing plants is the various kinds of 

 movements whicti i hey display in manilest relation to their wants. The most diflerent organs — 

 stems, branches, flower peduncles, petioles, midrib- of the leaf and leaflets, and apparently aerial 

 ,-oots— all possess this power. It has often been vaguely asserted that plants are distinguished 

 from animals by not having the power of moveme t. It should rather be said that plants acquire 

 and display this power only when it is of some advantage to them; this being of comparatively 

 rare occurrence, as they are aflSxed to the ground, and food is brought to them by the air and rain." 

 — The Autho}'. 



Various Contrivances by which Orchids are Fertilized by Insects. 



With Illustrations. Revised edition. 12mo. Cloth, $1.75. 



" The object of the wo.-k is to show thnt the contrivances by which orchids arc fertilized are aa 

 varied and almost as perfect as any of the most beautiful adaptations in the animal kingdom ; and, 

 secondly, to show that these contrivances have for their main object the fertilization of the flowers 

 with pollen brought by insects trom a distinct plant."— /'Vowi the Introduction. 



Effects of Cross- and Self-Fertilization in the Vegetable Kingdom. 



12mo. Cloth, $2.00. 



"As plants are adapted by such diversified and effective means for cross-fertilization, it might 

 have been inferred from this fact alone that they derived some great advantage from the process; 

 and it is the object of the present work to show the nature and importance of the benefits thus 

 derived." 



Different Forms of Flowers on Plants of the Same Specios. Illustrated. 



12mo. Cloth, 11.50. 



"The differently formed flowers normally produced by certain kinds of plants, either on the 

 same stock or on distinct stock, form the subject of the present volume. As far as the sexual rela- 

 tions of flowers are concerned, Linnaus long ago divided them into hermaphrodite, monoecious, 

 dioecious, and polygamous species. This fundamental distinction, with the aid of several subdi- 

 visions in each of the four classes, will serve my purpose; but the classitication is artificial, and 

 the groups often pass into one another." — From the Introduction. 



Formation of Vegetable Mould through the Action of "Worms, with 



Observations on their Habits. With Illustrations. 12mo. Cloth, $1.50. 



"All lovers of nature will unite in thanking Mr. Darwin for the new and interesting light he 

 has thrown upon a subject so long overlooked, yet so full of interest and instruction, as the struct- 

 ure and the labors of the eaxiix-wovm.''^— Saturday Review. 



The Power of Movement in Plants. By Charles Darwin, LL. D., F. R. S., 



assisted by Francis Darwin. Illustrated. 12mo. Cloth, $2.00. 



" Mr. Darwin's latest study of plant-life shows no abatement of his power of work or his habits 

 of fresh and original observation. We have learned to expect from him at intervals, never much 

 prolonged, the results of special research in some by-path or other subordinated to the main course 

 of the biological system associated with his name; and it has been an unfailinij source of interest 

 to see the central ideas of the evolution and the continuity of life developed in detail through a 

 series of special treatises, each well-nigh exhaustive of the materials available for its subject."— 

 Saturday Review. 



Life and Letters of Charles Darwin. Including an Autobiographic Chapter. 

 Edited by his Son, Francis Darwin. With Portraits, etc. Two vols. 12mo. 

 Cloth, $4.50. 



New York: D. APPLETON & CO., Publishers, 1, 3, & 5 Bond Street. 



