REMOVE

1. Geologic Cross-Section
2. Comstock Lode (Nev.)
3. Washoe
4. 1870

WHAT

1. Atlas Map (1)
2. World Atlas (1)

WHERE

1. Michigan (1)
2. Ohio (1)
3. Pennsylvania (1)
4. U.S. North East (1)

WHO

1. Eberhardt, H. (1)
2. Habenicht, H. (1)
3. Justus Perthes (1)
4. Kuhn, E. (1)
5. Metzeroth, C. (1)

WHEN

1. 1875 (1)