SKETCH OF AH GIN A AND MET HAN A. 8oi 



ent inhabitants. The sides are steep and covered with large 

 angular blocks of a compact dark pyroxene-andesite, almost 

 identical with that of Mt. Oros. So great is the similarity that 

 petrographically it belongs to the latter district, while topo- 

 graphically it should be placed in the Monastery district, as it 

 terminates sharply and steeply at its southern end on the 250- 

 metre high saddle connecting the central Monastery district 

 with Mt. Oros. Besides the mountains just described there are 

 a number of subordinate spurs and ridges which belong to this 

 district, such as Mt. Pagoni (Peacock Mountain) and the dacitic 

 ridge near St. Vasili on the west coast. 



The southern part of the island is connected with the district 

 just described by the above-mentioned saddle which is flanked 

 by two valleys running respectively west and east. This angle 

 of iEgina is occupied by the dominating mass of Mt. Oros, 540 

 metres high, with its outlying spurs. This mountain is of quite 

 regular conical shape, near the top the sides sloping at angles 

 of about 35 , and at the south running down to the sea in a long 

 slope of about 15 . The area at the summit of the mountain is 

 not large, and chiefly taken up by a small chapel of St. Elias, 

 this uppermost platform being bounded on the south by steep, 

 but not high declivities. No indications of a crater were to be 

 noted, and the topmost rock is a fine-grained, dark gray pyroxene- 

 andesite, with a quite well developed, phonolite-like system of 

 joints, the rock splitting easily into thin slabs. This structure is 

 also met with in the augite-andesite of St. Somatos on the north- 

 east foot, where are some well-preserved Hellenic walls. The 

 flanks of the mountain are covered with angular blocks, making 

 the ascent and descent very fatiguing. As seen from the map 

 the lowest slopes of the mountain are made up of radiating 

 ridges, most of which seem to be due to erosion, while some may 

 be of the nature of lava streams. A small eruptive dome exists 

 on the east flank near the hamlet of Anzeiou, forming a hill 297 

 metres high. This is formed of a compact dark hornblende 

 dacite, as is the hill of Kakoperato, another later flank eruptive 

 centre, on the northwest flank near the shore. 



