98 CLASSIFICATION VSf XilJii Jr-UBLIO L,AJSDS. 



acts being permitted at any time prior to their alienation under the 

 coal-land laws. A typical order of restoration is given below. 



DEPAETMteNT OF THE INTEEIOB, 



United States Geological Subvet, 



Washington, February 12, 1913. 

 The honorable the Secretabt of the Intebiob. 



Sib: The classification of the lands listed below, which are included in an 

 existing withdrawal, has been completed and reported to the Land Office, and I 

 therefore recommend the submission to the President, for appropriate action, of 

 the following order of restoration, involving 264,009 acres, all noncoal. These 

 lands are not included in petroleum or phosphate reserves or in national forests, 

 but part are within a power-site reserve. 



Very respectfully, Geo. Otis Smith, 



Director. 



Febeuaet 18, 1913. 

 Respectfully referred to the President with favorable recommendation. 



Walteb L. Fishee, 



Secretary. 



Ordee of Restoeation. 



Coal-land restoration — Idaho No. 10. 



So much of the order of withdrawal made heretofore for the purpose of coal- 

 land classification, namely, Idaho No. 1, as affects the lands hereinafter described 

 is hereby revoked for the reason that the Director of the Geological Survey has 

 classified these lands. This revocation does not affect withdrawals or reserva- 

 tions other than as above set forth. 



Boise meridian. 



T. 35 N., R. 1 E., all of township. 

 [Here follows the remainder of the land description.] 



Wm. H. Taft, 



President. 

 Febkuakt 18, 1913. 



FIELD WOEK ON COAL LANDS. 

 OEiraiRAIi XATTTRI! OF THU 'WOBE. 



The second general step in the process of classification is to obtain 

 in the field the information there available that is necessary for the 

 classification. Field work that is done expressly for the classifica- 

 tion of coal land involves all research that is made in general geologic 

 field work but gives special weight to certain factors. The informa- 

 tion needed for classifying coal land relates to (1) location, (2) 

 stratigraphy, (3) horizontal extent and thickness of coal beds, (4) 

 A ertical position, and (5) quality of the coal. These may be taken 

 up in turn. 



