Note 38 — APPENDIX.
Reading edition
Specimens from the cliffs in lat. 66¾°.
159 Very fine-grained sandstone, with much clayey basis—portions of the bed iron-shot.
160 Sandstone fine-grained, and appearing, when examined with a lens, to be composed of minute grains of whitish translucent quartz, black Lydian stone, and ochre-coloured grains, probably of disintegrated felspar.
161 Rounded grains of nearly transparent quartz united without cement—this stone is friable.
162 Sandstone composed of grains like the preceding, united by a basis, and forming a firmer stone.
163 Hard, thin, slaty, bluish-gray sandstone, much iron-shot.
164 Fine-grained, bluish-gray sandstone, not to be distinguished in hand-specimens from some of the sandstones which occur at the rapid in Bear Lake River.