Stiff ascent (15 min.) to First or Southern Crater. At 1.13 P.M. sat down upon its western lip. Walking lasted 2 hours 45 min. Total ascent, 4 hours 45 min.
Aneroid, 25·94 (difference, 3·30); thermometer, 68° (air); hygrometer, 0°.
Passed over ridge, and reached snow; thence to north-east lip of Second or Northern Crater, the apex. Reached highest point 1.53 P.M. Total, 3 hours 13 min. (included halts, not bad for difference 2·56 of aneroid).
Aneroid, 25·62 (difference, 4·84); thermometer, 67°; hygrometer, 0°.
2.30 P.M.—Began descent (walked 1 hour 25 min.).
3.28 P.M.—Lowest snow.
3.45 P.M.—Mounted horses (rode slowly 1 hour 45 min.).
5.30 P.M.—Næfrholt farm. Total descent, 3 hours 10 min.
Total of ascent and descent, 7 hours 55 min. (say 8 hours).
Day clear, sun very hot; air thirsty for man and beast.