Image from the Biodiversity Heritage Library.
Contributed by Smithsonian Institution Archives.
| www.biodiversitylibrary.org
Transcription
Below these rocks there occur inter-
stratified about 5 feet of very light
gray rhyolite tuffa beautifully
banded and varying from Abone-gens
ous in texture = 1126, to seamed
with darker gray - 1127. Strike N.
20 W., dip N. 60 E. almost 80.