12 University of California Publications in Zoology. [Vol. 7 



Professor H. M. Hall, of the University of California, from 

 specimens collected and now in the University Herbarium. 



I should like here to express my appreciation of courtesies 

 received from several institutions and individuals in connection 

 with this report : To the authorities of the United States National 

 Museum for the loan of bird skins, as indicated under the 

 various species in the general report following; to Dr. C. Hart 

 Merriam, Chief of the Biological Survey, for the loan of 

 specimens of birds and mammals; to Mr. E. A. Preble and Mr. 

 N. HoUister for specific information on certain puzzling forms; 

 to Professor J. 0. Snyder, of Leland Stanford Junior University, 

 for the loan of a series of skins of Sciurus h. vancouverensis from 

 the collection of that institution; and to Professor Chas. A. 

 Kofoid, of the University of California, for critical reading of 

 the final manuscript. 



DESCRIPTIONS OP LOCALITIES. 

 KUPEBANOr ISLAND. 



We made two camps on this island, the first being some 

 five or six miles above the south end of Keku Straits. These 

 straits, separating Kupreanof and Kuiu islands, are exceedingly 

 narrow at this point, being, in places, less than a hundred feet 

 across; they are navigable, even to as small a boat as ours, only 

 at high tide, as there are series of rapids in them at low water. 

 Thus they are practically ho barrier at all to the distribution 

 of animal life, and the same species of birds and mammals 

 range over both islands. As the channels between Kupreanof 

 and Mitkof, and Mitkof and the mainland, are likewise narrow 

 and shallow, some of the mainland fauna is thus carried almost 

 to the western extremity of the archipelago. 



"We remained but a few days in our first camp and then 

 moved to a point some three miles farther south, where the 

 presence of two fairly large streams with bordering meadow 

 land gave promise of better results than we had been obtaining. 

 This part of Kupreanof Island is quite flat with no conspic- 

 uous mountain ranges anywhere. There were two peaks some 

 six or seven miles north of our camp, which are about 1500 



