CONTENTS. 



Page. 



The purpose of land classification 1 7 



Development of the Survey's organization for land classification 11 



History and legal basis for land classification 18 



Introduction 18 



Land lavs^s 20 



General divisions 20 



Public-land laws 20 



Agricultural-land laws 20 



Purpose 20 



Homesteads 21 



Forest homesteads 21 



Enlarged homesteads 22 



Desert land 22 



Reclamation act " 22 



Isolated tracts 22 



Timber and stone lands 23 



Mineral-land laws 23 



General provisions 28 



Lodes 24 



Placers 25 



Building stone 25 



Oil 26 



Salines 26 



Coal-land laws 27 



Laws relating to public and quasi-public uses 27 



Railroads 27 



Irrigation 28 



Power 28 



Mining and milling 29 



Mimicipal uses 29 



Land grants 29 



Grants to States 29 



In aid of schools and State institutions 29 



In aid of internal improvements 30 



Carey Act 30 



Railroad grants 31 



Necessity for land classification 32 



Agencies and methods of classification 33 



Classification by afBdavit of applicant 33 



Classification by deputy surveyors 34 



Classification by Land Office field service 34 



Classification by the Geological Survey 35 



Historical slietch 35 



Coal lands 36 



Oil lands 38 



Phosphate lands 39 



Potash lands 40 



Metalliferous-mineral lands -— 40 



3 



