Scope and Contents From the Collection: This one-volume book of plat maps for Harris County, Texas by the Zingery Map Company provides a detailed view of land use in Houston and Harris County at the end of the 1960s. It is useful because it is indexed by street, subdivision, and survey and abstract number. The book was issued in late 1968 but contains maps revised through 1970. It covers the entire county in one volume because the maps were reproduced at relatively small scale. Its users were advised to contact the map company...