Three soundings were taken between South Georgia and Tristan da Cunha, but heavy weather again prevented our doing more.
Our last series were taken from 50 miles north of Gough Island to 35° 40´ S. and 5° W., the bottom over this area consisting mainly of white clay (globigerina ooze).
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Difficulty was experienced at all times in sounding owing to the extraordinary liveliness of the Quest, and many more soundings would have been taken but for the slowness of the vessel, lateness of the season, limited time and bad weather.
A number of heights in the Tristan da Cunha, Gough Island group, were ascertained by Captain G. V. Douglas with an aneroid to be marked in excess on the Admiralty charts.
The new heights as determined by him and compared with those in Admiralty charts are:
| By Douglas | By Admiralty Chart 2228 | |
| FEET. | FEET. | |
| Tristan da Cunha | 6,400 | 7,640 |
| Middle Island | 200 | 150 |
| Inaccessible Island | 1,508 | 1,840 |
| Gough Island | 2,915 | 4,380 |
It will be noted that an increase is to be applied to the Admiralty height of Middle Island only.