LIST AND CONTEKTS OF BULLETINS 1 TO 100. 19 



* No. 38. Xorth Anierican Species of Leptochloa. l^v A. S. Hitcli- 



cock. Assistant Agrostologist, in Chai-jre of Cooperative 

 Experiments, Grass and Fora<>e Plant Investigations. 

 1903. 24 pp., C) pis., IC) fio-s. Price, 15 cents. 



Contents: TntrodiK-tion — Key to species of tlie T'nited States — History of 

 genus — Xorth Anieriean species — Species excluded — I)escri])ti<)n of plates. 



* f No. :U. Silkworm Food Plants: Cultivation and Propagation. 



By Georoe AV. Oliver, Expert, Seed and Plant Intro- 

 duction and Distribution. 1903. 20 pp., frontispiece, 

 12 pis. Price. 15 cents. 



Contents : Introduction — Afethods of reproduction : Propagation by cut- 

 tings ; summer cuttings; winter ciittings ; the oitting; pre])arations for 

 planting cuttings: indoor spring cuttings: propagation by seeds; grafting 

 and budding: root grafting ; scion or s])rig budding ; shield budding; raising 

 stocks for grafting and budding — Soil — Planting — Pruning — Description of 

 plates. 



No. 35. Recent Foreign Explorations, as Bearing on the Agricultural 

 Development of the Southern States. By S. A. Knapp, 

 vSpecial Agent, Seed and Plant Introduction and Distri- 

 bution. 1903. -U: pp., () pis., 2 figs. Price, 15 cents. 



Contents; Introduction — Japan; Agricultural situation; acreage and yield 

 of food crops; methods of rice culture; field work; cutting rice; manure; 

 farm wages; cost of raising rice; farm life; general remarks — Ceylon : Agri- 

 culture: imjiorts ; farmhouses — India; Timber; extent of arable land; fer- 

 tility of the soil ; green manures ; commercial fertilizers ; crop rotation ; public 

 roads; conveyances; dress; country houses; villages; plows and scrapers; 

 seeding and harvesting; rice farming; treatment of the seed bed and manur- 

 ing; ])lo\ving and fertilizing; methods of cultivation; ]iroduct ])er acre; har- 

 vesting; thrashing; wages; cost of cultivation; northern limit of culture; 

 consumption of rice as food; acreage under cultivation; acreage uuder irri- 

 gation ; live stock and farm implements ; ^vells ; rice produced ; agriculture 

 in the Punjab; cost of living; rice farming in Lower Burma; rice milling; 

 rice for foreign markets; selection of seeds — China; Agricultural conditions; 

 tillage of the soil; irrigation; cultivating, harvesting, and thrashing rice; 

 hulling rice ; production and cost of milling rice ; cost of building, etc. ; expor- 

 tation of agricultural prodiicts — The Philippine Islands : Rainfall ; tempera- 

 ture ; range of products ; stock and pasture lands ; fodder plants ; sugar cane ; 

 rice farming ; fruits ; timber. 



* No. 3G. The " Bluing " and the " Pved-Eot " of the Western Yellow 



Pine, with Special Reference to the Black Hills Forest 



Reserve. By Hermann von Schrenk, Special Agent in 



Charge of the Mississippi Valley Laborator}^, Vegetable 



Pathological and Physiological Investigations. 1903. 40 



pp., 14 pis. (including 4 in colors). Price, 30 cents. 



Contents ; Introductioh — Death of the trees : When are the trees dead — The 

 "blue" wood : Rate of growth of the blue color ; nature of the "blue" wood ; 

 strength of the "blue" timber ; lasting power of the "blue" wood — The "blue" 

 fungus : Effect of "blue" fungus on the toughness of the "blue" wood ; relation 

 of the "blue" fungus infection to the beetle holes ; fruiting organs of the 

 "blue" fungus; growth in artificial media; dissemination of the spores; the 

 bbie color ; simimary — Decay of the "blue" wood ; The "red-rot" of the western 

 yellow pine; cause of the "red-rot"; conditions favoring the development of 

 the "red-rot" fungus ; final stages and fruiting organs ; rate of growth of 

 "red-rot" — Amount of diseased timber — Possible disposal of the dead wood : 

 In the Black Hills ; in the remaining parts of South Dakota — Value of the 

 dead wood — Inspection — Recommendations — Description of plates. 



101 



