CONTENTS. 



Department Bulletin No. 1001. — The Relation of Land Tenure to the 



Use of the Arid Grazing Lands of the Southwestern States: Page. 



Introduction . 1 



The region 3 



Some factors controlling stock raising on arid grazing lands 9 



The natural conditions 9 



The resultant forage crop 13 



The land tenure 15 



Some consequences of the open-range method of stock raising 28 



Some benefits arising from fencing the range and controlling the methods 



of use 36 



The necessary legislation 42 



Basic assumptions 42 



Requirements that must be met 44 



Methods proposed ". 45 



Conclusions 62 



Appendices 63 



Bibliography 68 



Department Bulletin No. 1002. — Open Types of Public Markets : 



Introduction 1 



Function of public markets 3 



Retail and wholesale markets 4 



Ownership and control 5 



Essential conditions for successful open market . 7 



Establishment of a market 10 



Operation of a market : 17 



Summary 18 



Department Bulletin No. 1003. — -The Distillation of Stump Wood and 

 Logging Waste of Western Yellow Pine: 



Importance of western yell ow pine. 1 



Distribution of western yellow pine 2 



Purpose of investigation 13 



Taking samples .' 15 



Distillation of samples 22 



Crude products of retort distillation 31 



Products obtained in refining crude turpentine 37 



Calculation of yields of refined turpentine and pine oil 41 



Commercial distillation processes 43 



Feasibility of distilling western yellow pine 46 



Relation of wood distillation to land clearing 51 



Small semiportable wood-distilbing plants 53 



Use of oil for ore flotation , 54 



Refining crude wood turpentine 56 



Summary 67 



Literature cited 69 



Department Bulletin No. 1004. — Use of Water by Spring Wheat on the 

 Great Plains: 



Introduction 1 



Statement of the problem 2 



Source, character, and method of study of the data 3 



Daily rate of the use of water while the crop is growing rapidly 6 



Rate of the use of water as soil moisture approaches depletion 11 



Rate of the use of water during the growing season 12 



Quantity of water used during the growing season 20 



Correlation between the use of water and the yield at individual stations. . 26 



General discussion of the results 30 



Conclusions 32 



in 



