< Page:Popular Science Monthly Volume 3.djvu
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THE POPULAR SCIENCE MONTHLY.
Fig. 3.
General section of the drift from toledo, ohio to shelby county, ohio
| a. | No. 2. (clay subsoil). |
| b. | No. 2. (gravel and sand subsoil). |
| c. | Glacial stratification within the hard pan. |
| d. | Hard pan, glacier drift, holding striated bowlders—(No. 3.) |
| e. | Gravel, sand, and bowlders, holding water.—(No. 4.) |
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