CONTENTS. 



Page. 



Introduction 9 



Persons engaged and territory covered 10 



Previous investigations 11 



Principal problems and requirements at the beginning of the work 11 



Review of the field work ])y regions 13 



Atlantic coast 13 



Gulf coast - - - 14 



Con(liti( )ns and i)roblems 14 



Work done 15 



The Great Plains _ 18 



Conditions and pn >] )lems 18 



Work done - - - 19 



Rocky Mountain region - 27 



Conditions and problems 27 



Work done - 28 



The Northwest 39 



Conditions and problems 39 



Work done - - - 39 



The Southwest - 42 



Conditions and problems 42 



Work done - - 43 



The Pacific coast - . - 52 



Conditions and problems 52 



Work done . . - - 52 



General survey and summary 55 



Forage plants for alkali soil 57 



Sand and soil binders - 58 



Specimens secured - 58 



Control of grazing land - 59 



The Australian systems ■ 59 



Canada - 61 



Texas - 61 



State school lands and railroad lands - 61 



Suggestions for further work 62 



3 



