| Bailey's First Lessons With Plants. | $.40 net | "Extremely original and unusually practical." | | Ingersoll's Wild Neighbors. | $1.50 | "Instructive as well as delightful."—Popular Science Monthly. | | Lange's Hand-Book of Nature Study. | $1 | "The style of the book is fresh and inspiring." | | Murché's Science Readers. | | | Vol. | I. | 25 cents. | | Vol. | II. | 25 cents. | | Vol. | III. | 40 cents. |
| | | Vol. | IV. | 40 cents net. | | Vol. | V. | 50 cents net. | | Vol. | VI. | 50 cents net. |
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| | Weed's Life Histories of American Insects. | $1.50 | "An unusually attractive book."—Dial. |
| | Wilson's Nature Study in Elementary Schools. | | | First Nature Reader | 35 cents | | Second Nature Reader | 35 cents | | Teacher's Manual | 90 cents |
| | Wright's Citizen Bird. | $1.50 | An interesting story, giving to the children much accurate information about American birds. "Most delightful book on the subject yet printed in the United States. I wish every boy and girl could read it."—J. M. Greenwood, Sup't Kansas City, Mo. | | Wright's Four-Footed Americans. | $1.50 | Four-Footed American Mammals treated in story form in the manner of Citizen Bird. | | Wright's Birdcraft. | $2.50 net |
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