FOREST BOTANY 167 



United States Forest Service. (3289^ 



black cherry (prunus serotina) . U. S. Dept. Agr., Forest Serv. Circ. 94, 

 3 pp. 1907. 



— (3290) 



black hemlock, tsuga mertensiana (bong.) CARR. U. S. Dept. Agr., Forest 

 Serv. Silvical Leaflet 31, 4 pp. 1908. 



— (3291) 

 black locust (robinia pseudoacacia). U. S. Dept. Agr., Forest Serv. Circ. 



04, 3 pp. 1907. 



— (3292) 

 black spruce, picea mariana (mill.) b. s. p. U. S. Dept. Agr., Forest Serv. 



Silvical Leaflet 28, 3 pp. 1908. 



— (3293) 

 black walnut (Juglans nigra). U. S. Dept. Agr., Forest Serv. Circ. 88, 



ed. 2, 5 pp. 1909. 



— (3294) 



BLUE SPRUCE, PICEA PARRYANA (ANDRE) PARRY. U. S. Dept. Agl\, Forest Serv. 



Silvical Leaflet 29, 2 pp. 1908. 



— (3295) 

 box elder (aceb negundo). U. S. Dept. Agr., Forest Serv. Circ. 86, rev. ed., 



3 pp. 1909. 



— (3296) 



bristlecone fir, abies venusta (DOUGL.) koch. U. S. Dept. Agr., Forest Serv. 

 Silvical Leaflet 24, 2 pp. 1908. 



— (3297) 

 bristlecone pine (PInus aristata engelm). U. S. Dept. Agr., Forest Serv. 



Silvical Leaflet 23, 2 pp. 1908. 



— (3298) 



EROADLEAF MAPLE, ACER MACROPHYLLUM PURSH. U. S. Dept. Agr., Forest SerV. 



Silvical Leaflet 51, 4 pp. 1912. 



— (3299) 

 bur oak (quercus MACROCARPA). U. S. Dept. Agr., Forest Serv. Circ. 56, 



rev. ed., 3 pp. 1910. 



— (3300) 



CALIFORNIA SWAMP PINE, PINUS MURICATA DON. U. S. Dept. Agr., Forest 



Serv. Silvical Leaflet 30, 2 pp. 1908. 



— . (3301) 

 chestnut (castanea dentata). U. S. Dept. Agr., Forest Serv. Circ. 71, 



4 pp. 1904. 



— (3302) 

 chestnut oak, quercus prinus linn. U. S. Dept. Agr., Forest Serv. Silvical 



Leaflet 41, 3 pp. 1908. 



— (3303) 

 coffeetree (gymnocladus dioicus). U. S. Dept. Agr., Forest Serv. Circ. 91, 



4 pp. 1907. 



— (3304) 

 cottonwood (POPULus DELTOiDES). U. S. Dept. Agr., Forest Serv. Circ. 77, 



4 pp. 1907. 



— (3305) 

 cottonwood (populus deltoides, marsh.). U. S. Dept. Agr., Forest Serv. 



Silvical Leaflet 25, 3 pp. 1908. 



— (3306) 

 coulter pine, pinus coulteri lamb. U. S. Dept. Agr., Forest Serv. Silvical 



Leaflet 34, 2 pp. 1908. 



— (3307) 

 digger pine, pinus sabiniana dougl. U. S. Dept. Agr., Forest Serv. Silvical 



Leaflet 33, 2 pp. 1908. 



