You limited your search to:

 County: Cameron County, TX
 Decade: 1900-1909
 Collection: Texas Soil Surveys
Soil map, Texas, Brownsville sheet
Map displays soil types along with canals, lakes, rivers, swamps, towns, roads, and railroads. Includes legend and soil profiles. texashistory.unt.edu/ark:/67531/metapth19741/
Soil survey of Brownsville Area, Texas
Text describes climate, agriculture, and soils of the Brownsville Area, Texas. texashistory.unt.edu/ark:/67531/metapth19807/