FORESTRY 29 



SCHOOLS Continued. 



Tree planting on rural school grounds. 1907. 32 pages, illus. Paper, 5c. 



A 1.9 : 134 

 See also, in this list, headings National forests Nurseries. 



SCREWS. Adhesion of lag screws and bolts in wood. (In Tests of metal, etc., 



1902, pages 563 to 578.) Cloth, $1.40. W 34.14 : 902 



SEED. 



Extracting and cleaning forest tree seed. 1912. 23 pages. Paper, 5c. 



A 13.4 : 208 

 Influence of age and condition of tree upon seed production in western 



yellow pine. 1912. 11 pages. Paper, 5c. A 13.4 : 196 



Seed collection on large scale. Pages 433 to 442, illus. [From Agriculture 



Yearbook, 1912.] Paper, '5c. A1.10 a :604 



On the collection of seeds of forest trees for use in reforestation. 

 Seed-eating mammals in relation to reforestation. 1911. 5 pages, illus. 



Paper, -5c. A 5.4 : 78 



See also, in this list, heading Insects. 

 SEQUOIA. See, in this list, headings Bigtree Redwood Wood. 



SEWANEE, TENN. Conservative lumbering at Sewanee. 1903. 36 pages, 

 illus., map, large 8. Paper, 15c. A 13.3: 39 



SHEEP. Pasturage system for handling range sheep, investigations during 



1909. 40 pages, illus. Paper, 5c. A 13.4 : 178 



See also, in this list, heading Coyotes. 

 SHINGLES. See, in this list, heading Forest products. 



SIERRA NEVADA MOUNTAINS. Forest conditions in northern Sierra Ne- 

 vada, Cal. 1902. 194 pages, 12 maps, 6 in pocket, 4 Paper, 50c. 



1 19.16 : 8 

 SILVICAL LEAFLET A 13.12 : 



Each leaflet describes a kind of tree, telling of its qualities, method of growth, 

 where it flourishes best, how to cultivate it, and what use to make of it. 



19. Bigtree, Sequoia washiqgtoniana (Winsl.) Sudw. Paper, 5c. 



21. Jeffrey pine, Pinus jeffreyi Oreg. Com. Paper, 5c. 



22. Arnabilis fir, Abies amabilis (Loud.) Forb. Paper, 5c. 



24. Bristle-cone fir, Abies venusta (Dougl.) Koch. Paper, 5c. 



27. Torrey pine, Pinus torreyana Parry. Paper, 5c. 



30. California swamp pine, Pinus muricata Don. Paper, 5c. 



31. Black hemlock, Tsuga mertensiana (Bong.) Carr. Paper, 5c. 



35. Alpine larch, Larix lyalli Parl. Paper, 5c. 



36. Knobcone pine, Pinus attenuata Lenimon. Pa*per, 5c. 



37. W T hite-bark pine, Pinus albicaulis Engelm. Paper, 5c. 

 41. Chestnut oak, Quercus prinus Linn. Paper, 5c. 



44. Jack pine, Pinus divaricata, Ait., Du Mont de Cours. Paper, 5c. 



46. Limber pine, Pinus flexilis James. Paper, 5c. 



47. Pinon pine, Pinus edulis Engelm. Paper, 5c. 



48. Pignut hickory, Hicoria glabra (Mill.) Britton. Paper, 5c. 



49. Shagbark hickory, Hicoria ovata (Mill.) Britton. Paper, 5c. 



51. Broadleaf maple, Acer macrophyllum Pursh. Paper, 5c. 



52. Oregon oak, Quercus garryana Dougl. Paper, 5c. 



53. Red alder, Alnus oregona Nutt. Paper, 5c. 

 SLIPPERY ELM. See, in this list, heading Elm. 

 SOUTH AMERICA. See, in this list, heading Maps. 

 SPANISH CEDAR. See, in this list, heading Cedar. 



SPRUCE. 



Engelmann spruce in Rocky Mountains, with special reference to growth, 

 volume, and reproduction . 1910. 23 pages. Paper, 5c. A 13.4 : 170 



NOTE. In ordering publications from this List use the words of the title 

 as far as the first period, and all the composite number which follows the price. 



