1884,] NATURAL SCIENCES OF PHILADELPHIA. 7t 



not been published. The Herbft,rium of the Academy of Natural 

 Sciences of Philadelphia is rich through the labors of Harrington, 

 Kellogg and Davidson, and the author is indebted in a great 

 measure to their specimens for assistance in the identification of 

 his own. 



The collection made at Bartlett (sometimes called Hood's) 

 Bay, is probably the first made at that point ; and it is the interest 

 attached to this that, chiefly, leads the author to publish the 

 paper. 



On our return from Chilcat (written Tchillcat in some 

 charts) down the Lynn Channel, we ran up Icy Straits into Gla- 

 cier Bay, to the fifth or Muir Great Glacier ; and on our return, 

 passed in between the Beardslee Islands to the mainland at a 

 point opposite Cross or Icy Sound in about lat. 58.30, called on 

 our chart Bartlett Bay. This is on a peninsula formed by the 

 junction of Icy Sound with the Lynn Channel, and nothing seems 

 to be known of this immense tract of land, except what can be 

 gathered from the not over-friendly Indians who live along the 

 coast in the fishing season. An Indian trader, Mr. Richai'd Wil- 

 loughby, told the author that at a point about twenty-five miles 

 above this he had traveled northwest across the peninsula for 

 some forty miles to Pyramid Harbor, near the mouth of the Chil- 

 cat, as he was understood to sa3^ wholly on ice. It is quite 

 probable that at about a hundred miles north from Bartlett Bay 

 the country is a vast ice-sheet, and there were circumstances 

 which seemed clearly to show that at no great distance of time 

 in the past the whole of the western portion of this peninsula was 

 covered by ice ; while on the eastern shore, on Lynn Channel, 

 the forest trees showed the mixture of trees of various ages 

 common to old forests ; the forests of the western slope were all 

 comparatively young, and none were evidently over fifty years 

 of age. The earth to fifty feet or more in depth in many places 

 was composed wholly of glacial drift, and on this were the young 

 forest trees. Some remarks on these features more in detail are 

 given at page 187, 1883, of the Proceedings of the Academy. Since 

 they were published, Mr. Dall has kindly informed the author 

 that there is historical evidence to show that this part was 

 covered by ice at about the end of the past century. This being 

 so, it becomes a matter of considerable interest to ascertain how 

 so many plants have maintained an existence here — whether they 



