598 General expenses . Vehicles . Traveling expenses . Attendance at meet- ings . Top ogr aph ic sur- ve ys . Provisos . Cooper ation wi th States, etc . Allotment for coop- eration . Geologic surveys. Alaska, mineral re- sources . Gaging streams ; in- vestigations . Provisos. Division of expenses . Allotment for coop- eration . Cla ssif icat ion of lands a s to min eral character, etc . 75TH CONGRESS, 1sT SESSION-CH . 5 70- AUGU ST 9, 1937 GENERAL EXPENSES For every expe nditur e req uisit e for and i nciden t to the a uthori zed work of the Geological Survey, including personal services in the District of Columbia and in the field, including not to exceed $30,000 for the purchase and exchange, and not to exceed $55,000 for the hire, maintenance, repair, and operation of motor-propelled and ho rse-d rawn p assen ger-c arryin g veh icles for f ield use on ly by geol o- gists, topographers, engineers, and land classifiers, and the Geologi- cal Survey is authorized to exchange unserviceable and worn-out passenger-carrying and freight-carrying vehicles as part payment for new freight-carrying vehicles, and including not to exceed $3,000 for necessary traveling expenses of the Director and members of the Geological Survey acting under his direction, for attendance upon meetings of technical, professional, and scientific societies when required in connection with the authorized work of the Geolog- ical Survey, to be expended under the regulations from time to time pr escri bed by the Secre tary o f the Inte rior, and u nder t he fo llowi ng heads : Topographic surveys : For topographic surveys in various por- tions of the United States, $650,000, of which amount not to exceed $250,000 may be expended for personal services in the District of Columbia : Provided, That no part of this appropriation shall be expended in cooperation with States or municipali ties except upon the basis of the State or municipality bearing al l of the expense incident thereto in excess of such an amount as is necessary for the Geological Survey to perform its share of standard topographic surveys, such share of the Geological Survey in n o case exceeding 50 per centum of the cost of the survey : Provided further, That $21 7,000 of t his am ount shall be av ailab le onl y for such coope ratio n with States or municipalities ; Geologic surveys : For geologic surveys in the various portions of the United States and chemical and physical researches relative thereto, $500,000, of which not to exceed $300,000 may be expended for personal services in the District of Columbia ; Mineral resources of Alaska : For continuation of the investigation of the mi neral resou rces of Al aska, $60,0 00, t o be a vaila ble im medi- ately, of which amount not to exceed $25,000 may be expended for personal services in the District of Columbia ; Gaging streams : For gaging streams and determining the water supply of the United States, the investigation of underground cur- rents and artesian wells, and the preparation of reports upon the best methods of utilizing the water resources, $900,000, of which amount not to exceed $100,000 may be expended for personal serv- ices in the District of Columbia : Provided, That no part of this appropriation shall be expended in cooperation with States or municipalities except upon the basis of the State or municipality bearing all of the expense incident thereto in excess of such an amount as is necessary for the Geological Survey to perform its share of general water resource investigations, such share of the Geological Survey in no case exceeding 50 per centum of the cost of the investigation : Provided urther, That $700,000 of this amount shall be available only for such cooperation with States or munici- palities ; Classification of lands : For the examination and classification of lands with respect to mineral character and water resources as required by the public-land laws and for related administrative oper- ations ; for the preparation and publication of mineral-land classifi- cation and water-resources maps and reports ; for engineering super- vision of power permits and grants under the jurisdiction of the
