178 University of California Publications in Zoology. [VoU-9 
tide line. Land birds are not so plentiful as at some other local- 
ities we have visited, and several species found on the islands are 
not represented here. 
Another camp was made on the northernmost of the Beards- 
? 
lee Islands near the ‘‘portage.’’ There the forest is still younger, 
not being as yet fully established. Sea birds are plentiful and 
breeding on some small islands nearby but a little farther out 
in the bay. 
From July 10 to 20, Dixon and Hasselborg worked at Cop- 
permine Cove on the west shore of Glacier Bay. Numerous trails 
eut through the woods at this point to reach copper prospects 
facilitate field work. <A trip was made to the summit of a 
nearby ridge with an approximate altitude of 2100 feet; and on 
July 5 South Marble Island was visited. It was necessary in 
order to reach it to crowd the canoe for several miles through 
or over the floating ice fragments which filled the bay at this 
point. The island, as the name implies, is a large mound of 
marble rock, smooth and sloping steeply to the water’s edge. A 
few alders and willows grow in places, and although only about 
a quarter of a mile long several little streams trickle down the 
sides. The loftiest part of the island is perhaps 100 feet in alti- 
tude. This island was notable because of the colonies of sea 
birds which nest there. No indications of mammals of any kind 
were discovered. : 
Idaho Inlet, Chichagof Island.—Idaho Inlet is a narrow fiord 
in the northwestern shore of Chichagof Island. It is eight miles 
long, tapering in width from two miles at its mouth to half a 
mile at its head. The mountains on each side are moderately 
steep and run up to an elevation of from 2000 to at least 3000 
feet. They are thickly forested at their bases and half way or 
more up, but are bald topped. We climbed one that was 2250 
feet in altitude and found it comparatively smooth on the sum- 
mit, thickly covered with grass. In spite of its favorable appear- 
ance we found neither birds nor mammals on it. The only level 
ground along the beach is a patch here and there at the mouth 
of a stream. The general scarcity of animal life at Idaho Inlet 
is said to be due to the prevalence of violent and cold north winds 
during the winter. During our stay there, July 20 to 25, the 
weather was continually stormy. 
