In the article on Lake Monongahela, in the December issue, Figures 3 (p. 275) and 5 (p. 277) are transposed. The legends are correct as they stand but the plates were mixed.
In the article on Lake Monongahela, in the December issue, Figures 3 (p. 275) and 5 (p. 277) are transposed. The legends are correct as they stand but the plates were mixed.