170 



and the meridians of 111 and 122° West longitude. The localities 

 at which observations were made upon the fauna are classified as 

 follows: — 



I. THE SACRAMENTO VALLEY. 



a. Outskirts of Sacramento City. 



b. Across the plains from Sacramento to the Sierra Nevada. 



II. THE SIERRA NEVADA. 



a. The western foot-hills. b. The pine region. 



c. The summit of Donuer Pass. d. The eastern slope. 



III. western Nevada {area of the eastern drainage of the 

 Sierra Nevada, or western Basin drainage). 



a. Eagle Valley, b. Carson Valley, d. Washoe Valley. 



e. Truckee Meadows (above the Virginia Mountains). 



/. Truckee Valley (below " " " 



g. Adjacent plateaux, h. Islands of Pyramid Lake. 



IV. EASTERN NEVADA, SOUTHERN IDAHO AND NORTHWESTERN 



utah (interior Basin drainage). 



a. West Humboldt Mountains, b. Toyabe Mountains. 



c. Ruby Mountains. d. East Humboldt Mountains. 



e. Upper Humboldt Valley. 



/. Lower Humboldt Valley, "Sink" of the Humboldt. 



g. Soda Lake, Carson Desert, h. Ruby and Franklin Lakes. 



i. Thousand Spring Valley. j. "City of Rocks," Southern Idaho. 



k. Deep Creek, Northwestern Utah. 



V. eastern utah ( Wahsatch and Uintah drainage, 

 or eastern Basin drainage). 



a. Salt Lake valley, b. Islands in the Great Salt Lake. 



c. Parley's Park (Wahsatch Mountains). 



d. Pack's Canon (western spur of Uintah Mountains). 



e. Kamas Prairie. /. Provo Canon (pass of the Provo River). 



I. SACRAMENTO VALLEY. 



a. Catalogue of birds breeding in the Immediate vicinity of 

 Sacramento City in June, 1807. 



1. Thryomanes Bewicki spilurus. Common? 



2. Dendroica Bsstlva. Abundant. 



3. Geothlypis trlchas. Abundant. 



