136 Report of the Brozvn-Harvard Expeditian. 



July 24: "The islands, as we approached, though not very- 

 high, yet presented a very picturesque appearance, mainly 

 due to ragged, angular, narrow dykes of trap protruding 

 through the rounded softer rocks. Packard says of this 

 region : It 'is in places very high and rugged, owing to the 

 presence of trap dykes and ancient volcanic overflows cap- 

 ping the hills of gneiss. Huge dykes of the black rock rail 

 in ruflfled crests over the hills of pale, gneiss-Hke, huge black 

 walls. . . . Owing to the great outbursts of black basalt cap- 

 ping the light gneiss hills, and running in ridges or forming 

 great splashes on the faces of the hills, and sometimes entire 

 hills, like craters, the hills are transformed from what would 

 otherwise be quite tame elevations into high, bold, wild- 

 looking peaks.' Except for these black intrusions, with 

 their irregularly broken outlines, the hills were rounded and 

 green with vegetation; but .the green was not that of our 

 own wooded hills, but a close-lying tinge of color, with bare 

 rocks and cliffs projecting through it." 



Of a chasm on one of the Seal Islands, September 20: 

 "After anchoring, we went ashore on Long Island. Its most 

 remarkable feature is a deep chasm extending almost the 

 entire width of the island, narrow, with steep, straight walls, 

 between which the breakers roll noisily at the bottom." 



Of Pomiadluk, July 30 : "We found a country that well 

 repaid us in its interesting features and wild grandeur. A 

 mountain range rises up from the shore where we landed, 

 and we climbed one peak which, by Daly's barometric read- 

 ings, was 1,170 feet in height. It rises in two slopes: the 

 lower one fairly gradual, with a level plain at its top half a 

 mile in width at a height of 390 feet, and then a much steeper 

 upper slope above it. The appearance of this mountain is 



