A report about the peridotite found in dikes of an eruptive rock between Isom's and Critche's Creeks in Kentucky.

Map shows late nineteenth century Kentucky and Tennessee counties, railroads, township grid, watershed, cities and towns. Relief shown by hachures. Scale [ca. 1:1,500,000].

Map shows counties, railroads, cities, towns, and notable physical features; Greer County as part of Texas; street names, canals, ferries, steam and horse railroads, parks, cemeteries, and buildings for New Orleans. Includes statistics and distances between points on railroad lines; key to buildings for New Orleans. Inset: [Texas Panhandle]. Relief shown by hachures. Scale [1:3,000,000], [1:2,200,000], and [1:572,000].