1913] Grinnell-Swarth: Birds and Mammals of San Jacinto 295 



support is at the rims, but their situation among the close-set, 

 obliquely upright, stiffish stems of the greasewood afforded some 

 support by minor twigs (see pi. 10, fig. 2). The measurements 

 of the nests are, respectively, of each of the two nests in each 

 respect: outside diameter, about 76. 73mm.; inside diameter, 

 48, 47; outside depth. 54. 59; inside depth, 41, 43. The nests 

 are composed largely of silvery gray weathered grass and plant 

 fibers, usually with the vascular bundles unraveled. Some of 

 these elements were evidently grass blades, some stems of plants, 

 and others the shredded bark of weed-stalks. There is an admix- 

 ture of tenaceous spider-web. and portions of spider cocoons ; on 

 the very outside, in both cases, are many unbroken, tridentate, 

 gray leaves of the sagebrush. Internally the nests are lined 

 with a distinct layer of slender, disintegrated, hair-like fibers 

 of great length, so that the inner surfaces of the nests are firm 

 and smooth, but porous. 



The eggs are pure white in color, with numerous abruptly- 

 defined minute dots and spots of not more than one-half milli- 

 meter diameter, nearly all agglomerated around the large ends. 

 In color these markings are mostly very dark, of clove brown 

 and sepia tones; a few approach drab. The eggs measure; no. 

 74: 18.3 x 14.."). 18.7 x 14.0. 18.8 x 14.1 ; no. 75: 17.8 x 14.7, 17.8 x 

 14.6. 18.2 x 14.7. 



We obtained seventeen specimens of the gray vireo in the 

 San Jacinto region, nos. 2313-2324, 2510. 2511. 3066-3068. All 

 are adults, and all but two (taken with the sets) are males. 

 There are five other skins of adults in the Museum (nos. 3631- 

 3635) collected by F. Stephens. May 13 to 18, 1908, near Campo, 

 San Diego County. One of these is a female, the rest males. 

 With the above unprecedented amount of material at command, 

 it becomes expedient for us to look into the characters of the 

 species, geographical and seasonal. This is especially desirable 

 since a name, calif or nicus, has been applied to the California 

 bird as separate from that of Arizona, whence vicinior was 

 originally described. 



A series of ten specimens was loaned us by the authorities 

 of the United States National Museum ; these are from Arizona. 

 New Mexico and Lower California, and include Coues' type, from 



