The Department of Agriculture and Immigration's map of Louisiana : showing parishes, parish seats, cities, towns, villages, etc., railroads, with distances between stations, the state highway system - improved and proposed improved roads.[192-?]"Issued under the direction of Harry D. Wilson, Commissioner."Copyright: George F. Cram Co., Indianapolis, Ind.Date inferred from state population, "1,799,987," in text.In lower right: LA. 12-34.One map shows oil and gas fields, salt domes producing oil, gas, sulphur, salt and limestone, and geophysical projects ; the other shows roads and road surfaces.cartographic