Title: Swamp lands of the United States. Letter from the Secretary of Agriculture, transmitting, in response to a Senate resolution of December 9, 1907, information in regard to the location and area of swamp and overflowed lands susceptible of being drained for agriculture; the effect of drainage upon such lands; the area drained under the laws of the different states and the benefits which have resulted therefrom, etc
Subjects: Floods, Land use, Wetlands