Strasburger, Noll, Schenck, and Schimper. _A Text Book of Botany._ N. Y.: Macmillan & Co. 746 pp. Valuable for minute information about the morphology of wood. U. S. Tenth Census, Vol. IX. See Sargent. U. S. Department of Agriculture, _Forest Service Bulletins_. The character of these government pamphlets is well indicated by their titles. No. 10 is an exceedingly valuable summary of the facts about the structure and properties of wood, contains the best available key to identification of common American woods (not trees) and a concise description of each. It is incorporated, as Chap. XIII, in Johnson's, "_The Materials for Construction_." N. Y.: John Wiley & Sons. Nos. 13 and 22 are large monographs containing much valuable information. No. 10. Filibert Roth, _Timber_. No. 13. Charles Mohr, _The Timber Pines of the Southern United States_. No. 15. Frederick V. Coville, _Forest Growth and Sheep Grazing in the Cascade Mountains of Oregon_. No. 16. Filibert Roth, _Forestry Conditions in Wisconsin_. No. 17. George B. Sudworth, _Check List of the Forest Trees of the United States_, 1898. No. 18. Charles A. Keffer, _Experimental Tree Planting on the Plains_. No. 22. V. M. Spalding and F. H. Chittenden, _The White Pine_. No. 24. Gifford Pinchot, _A Primer of Forestry_. No. 26. Henry S. Graves, _Practical Forestry in the Adirondacks_. No. 41. Herman von Schrenck, _Seasoning of Timber_. No. 45. Harold B. Kempton, _The Planting of White Pine in New England_. No. 52. Royal S. Kellogg, _Forest Planting in Western Kansas_. No. 61. _Terms Used in Forestry and Logging_. No. 65. George L. Clothier, _Advice for Forest Planters in Oklahoma and Adjacent Regions_. No. 74. R. S. Kellogg and H. M. Hale, _Forest Products of the U. S._, 1905. U. S. Department of Agriculture, _Forest Service Circulars_. No. 3. George William Hill, _Publications for Sale_. No. 25. Gifford Pinchot, _The Lumberman and the Forester_. No. 26. H. M. Suter, _Forest Fires in the Adirondacks in 1903_. No. 36. The Forest Service: _What it is, and how it deals with Forest Problems_. Also _Classified List of Publications and Guide to Their Contents_. No. 37. _Forest Planting in the Sand Hill Region of Nebraska_. No. 40. H. B. Holroyd, _The Utilization of Tupelo_. No. 41. S. N. Spring, _Forest Planting on Coal Lands in Western Pennsylvania_. No. 45. Frank G. Miller, _Forest Planting in Eastern Nebraska_. No. 81. R. S. Kellogg, _Forest Planting in Illinois_. No. 97. R. S. Kellogg, _Timber Supply of the United States_. No. 153. A. H. Pierson, _Exports and Imports of Forest Products, 1907_. U. S. Department of Agriculture Year Books for: 1896. Filibert Roth, _The Uses of Wood_. 1898, p. 181. Gifford Pinchot, _Notes on some Forest Problems_.