Scientific Publications. 



DIFFEKENT FORMS OF FtOWBKS ON PLANTS OF THE SAME 

 SPECIES. By Chaeles Dahwqt, LL.D., F.K. S. With IlluBtrations. 

 12mo. Cloth, $1.50. 



THE POWEB of MOVEMENT IN PLANTS. By Chaklus Daetin, 

 LL. D., F. H. S., assisted by Feakois Daewih. With lUusti-ationB. IZiiio. 

 Cloth, $a.oo. 



FORMATION OF VEGETABLE MOULD THBOCGH THE AC- 

 TION OF WOBMS, witli Obserratlons on their Habits. By 



Chaeles Daewih, LL.D., F. R. S. With Illustrations. 12mo. Cloth, 

 $1.00. 



" The main purpose of the work is to point out the share which worms haye 

 taken in the lormation of the layer of vegetable mould w hich covers the whole 

 surface of the land in every moderately humid country. Ail lovers of iiatiiro will 

 unite in thankinj; Mr. Darwin for tlie new and intereeting light he has thrown 

 upon a subject so long overlooked, yet so full of interest and instruction, as the 

 structure and the labors of the earth-worm." — Saturday Betiew. 



FUNGI ; Their Nature and Uses. By M. 0. Cooke. Edited by the Key. 

 IS.. J. Bbbselet. l^mo. Cloth, $1.50. 



"Even if the name of the author of this work were not deservedly eminent, 

 that of the editor, who has long stood at the head of the British fnngologists, 

 would he a sufficient voucher for the accuracy of one of the best botanical niono- 

 graphs ever issued from the press. . . . The stmciure, germination, and growth 

 of all these widely-diffused organisms, their habitats and influences lor good and 

 evil, are systematically described."— JFcw Jb/A World. 



FIBST BOOK OF BOTANY. Designed to Cultivate the Observing Pow- 

 ers of Children. By Eliza A. Toumaks. 12mo. Cloth, 85 cents. 



SECOND BOOK OF BOTANY. A Guide to the Study and Observation 

 of Plants. By Eliza A. TonMAUs. 12mo. Cloth, $1.30, 



HENSLO W'S BOTANICAL CHARTS, adapted for Use in the United 



States. By Eliza A. Yottmans. Six in set, handsomely colored. Per 



set, $15.75. Key to the same, 35 cents. 

 In the plan of illnstration adopted, the plant is first represented in its natural 

 size and colors ; then a magnified section of its flowers is given, showing the 

 relations of tlie parts to each other, and also magnified views of the different 

 floral organs. The charts contain nearly five hundred figures colored to the life, 

 and which represent twenty-four orders and more than forty species of plants, 

 showing a great variety of forms and structures of leaf, stem, root, flower, fruit, 

 and seed. They can he used with any botanical text-book, and should be upon 

 the walls of every school-room where botany is studied. 



BOTANY. By Sir J. D. Hookeb, F. R. S. (Science Primer.) Flexible cloth, 

 45 cents. 



New York : D. APPLETON & CO., 1, 8, & S Bond Street. 



