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	Name	Last modified	Size
	Parent Directory
	artesian_wells_as_a_means_of_water_supply_1895.pdf	2022-02-20 22:59	6202 KB
	deep_hole_drilling_1910.pdf	2022-02-20 22:59	6698 KB
	deep_well_drilling-the_principles_and_practices_of_deep_well_drilling_1921.pdf	2022-02-20 22:59	14165 KB
	diamond_drilling_for_gold_and_other_minerals_1900.pdf	2022-02-20 22:59	4898 KB
	irrigation_wells_and_well-drilling_methods_in_california_1945.pdf	2022-02-20 22:59	3501 KB
	methods_of_pumping_water_from_deep_wells_1903.pdf	2022-02-20 22:59	3381 KB
	modern_drilling_practice_1919.pdf	2022-02-20 22:59	12855 KB
	rock_boring_rock_drilling_explosives_and_blasting_1907.pdf	2022-02-20 22:59	20152 KB
	rock_drilling_1911.pdf	2022-02-20 22:59	9533 KB
	rudimentary_treatise_on_well-digging_boring_and_pump-work_1860.pdf	2022-02-20 22:59	3066 KB
	soil_drilling_by_vibration_1961.pdf	2022-02-20 22:59	5704 KB
	the_use_of_windmills_in_irrigation_in_the_semiarid_west_1910.pdf	2022-02-20 22:59	2304 KB
	water_supply-the_present_practice_of_sinking_and_boring_wells_1885.pdf	2022-02-20 22:59	9592 KB
	water_systems_for_farm_homes_1918.pdf	2022-02-20 22:59	3333 KB
	well-boring_for_water_brine_and_oil_1902.pdf	2022-02-20 22:59	6684 KB
	well-drilling_machinery_and_tools_1907.pdf	2022-02-20 22:59	27770 KB
	well_and_spring_protection_1922.pdf	2022-02-20 22:59	5867 KB