Table Showing Changes in Tongue of Asulkan Glacier.
| Aug. 12, 1899 | "Rock opposite lined with snout." |
| Aug. 8, 1900 | Snout receded 24 feet. |
| Aug. 6, 1901 | Ice above rock 20 feet, 4 feet advance. |
| Aug. 30, 1903 | Ice below rock 16 feet, 36 feet advance since 1901. |
| July 23, 1906 | Ice lines with test rocks, or is in same position as in 1899. |
The method employed in 1906 to measure the rate of flow was identical with that used on the Illecillewaet. The accompanying table gives the results so far secured.
Table Showing Average Daily Motion of Plates on Asulkan Glacier between July 13 and 23, 1906.
| Plate. | Total Motion. |
Average Daily Motion. |
Remarks. |
| No. 7 | 24 in. | 2.4 in. | Near right edge of ice. |
| No. 8 | 39 in.„ | 3.9 in.„ | 63 feet from R. edge. |
| No. 9 | 55½ in.„ | 5.5 in.„ | 157 feet from R. edge. |
| No. 10 | 67 in.„ | 6.7 in.„ | 325 feet from R. edge. |
| No. 11 | 67 in.„ | 6.7 in.„ | 415 feet from R. edge. |
| No. 12 | 63 in.„ | 6.3 in.„ | Close to left edge. |
| Boulder | 89 in.„ | 8.9 in.„ | On left moraine, resting on ice foot. |
Wapta Glacier (Yoho Valley)[1]
In 1901, when we first visited this glacier, we marked on the bed rock the extent of the tongue, and also took test photographs from a large boulder high up on the right moraine. This work was repeated in 1904 and in 1906. The work of the Scientific Section of the Alpine Club will demonstrate the rate of flow.
The recession from 1901 till 1904 was 89 feet, an average of about 30 feet per annum. From 1904 till 1906 apparently the glacier was practically stationary.
- ↑ Now known as Yoho Glacier.
