54 STAT.] 76T CONG. , 3D SESS.-CH. 395-JUNE 18, 1940 439 It is hereby declared to be the policy of the Congress that, in the Opening to entry of opening to entry of newly irrigated public lands, preference shall be liclandspreference. given to families who have no other means of earning a livelihood, or who have been compelled to abandon, through no fault of their own, other farms in the United States, and with respect to whom it appears after careful study, in the case of each such family, that there is a probability that such family will be able to earn a liveli- hood on such irrigated lands. GEOLOGICAL SURVEY For every expenditure requisite for and incident to the authorized General expenses. work of the Geological Survey, including personal services in the District of Columbia and in the field, including not to exceed $45,000 ehiles. for the purchase and exchange, and not to exceed $70,000 for the hire, maintenance, repair, and operation of motor-propelled and horse- drawn passenger-carrying vehicles for field use only by geologists, topographers, engineers, and land classifiers, and the Geological Survey is authorized to exchange unserviceable and worn out passenger-carrying and freight-carrying vehicles as part payment for new freight-carrying vehicles, and includ3000 Traveling not to exceed $3,penses. 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 Geological Survey, to be expended under the regulations from time to time prescribed by the Secretary of the Interior, and under the following heads: Salaries: For the Director of the Geological Survey and other per- Salaries. sonal services in the District of Columbia, $150,000; Topographic surveys: For topographic surveys in various portions Toographic sur- of the United States, $759,010, of which amount not to exceed $250,000 Pt,P.5O . may be expended for personal services in the District of Columbia: Provided, That no part of this appropriation shall be expended in Proisos. cooperation with States or municipalities except upon the basis of sta~ .tera"" with 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 standard topographic surveys, such share of the Geological Survey in no case exceeding 50 per centum of the cost of the survey: Provided further, That $275,000 of this amount Amount available. shall be available only for such cooperation with States or munici- palities; Geologic surveys: For geologic surveys in the various portions of Geologic surveys. 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; Strategic and critical minerals: For scientific and economic inves- trategic and criti- cal minerals. tigations of strategic and critical minerals in the United States or Post,p. i041. its Territories or insular possessions, as authorized by the Act of June 7, 1939 (53 Stat. 811), $145,000, of which amount not to exceed v. sc supp. $25,000 may be expended for personal services in the District of Columbia; Mineral resources of Alaska: For continuation of the investigation OfMsinr resources of the mineral resources of Alaska, $60,000, to be available imme- diately, 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 G g . a e;- st ms
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supply of the United States, the investigation of underground cur- rents and artesian wells, and the preparation of reports upon the
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