The western end of Kasheshebogamog Lake lies within the limit of the anorthosite [15] area, which extends from that point to Lake Michikamau, a direct distance of twenty miles and was the only anorthosite observed on the journey.
GLACIAL STRIAE
| First portage opposite Red River | S. 45 degrees E. |
| On Caribou Ridge | E. |
| At Washkagama Lake | S. 70 degrees E. |
| Near Seal Lake | N. 85 degrees E. |
| At Wuchusk Nipi | S. 75 degrees E. |
| Thirty-two miles above Wuchusk Nipi | S. 70 degrees E. |
MICROSCOPICAL FEATURES OF THE ROCK SPECIMENS
By G. M. Richards, Columbia University
1—Pegmatite-Grand Lake. The specimen was taken from a pegmatite dike at its contact with an amphibolite. In the hand specimen it is an apparently pure orthoclase but in the thin section small scattered quartz grains are observed; as well as the alteration products, Kaolin and sericite.
The minerals at contact are quartz, biotite, magnetite and hornblende.
Both the quartz and orthoclase contain dust inclusions and crystallites, while the evidences of shearing and crushing are abundant.
2-Quartz Biotite Schist.