ORNITHOLOGICAL EXPLORATIONS. 



, Tables of dimensions. 

 Ac— CHELIDON ERYTHROGASTKA d". 



271 



Localitj. 



cc 



■5 



CO 



6019 

 11008 

 45932 

 54440 

 £5481 



Heennan . . . 



Drexler 



Bishoflf 



Dall 



Herendeen . 



378 



1741 

 42 



Sacramento, Cal 



Fort Bridger, Utah . 



Sitka, Alaska 



Kutlut, Alaska 



TJnalashka, Alaska . 



May 19, 1858 

 June — , 1866 

 June 22, 1868 

 June 9,1873 



mm. 

 cf ad. 



d ad. 

 d" ad. 

 (f ad. 

 d" ad. 



mm. 

 128 

 126 

 119 

 122 

 123 



mm,. 



107 

 95 

 77 

 94 



100 



Average measurements of five males 



124 



95 



mm. 

 42 

 43 

 40 

 43 

 44 



42 



6.-CHELID0N ERYTHROGASTRA ?. 



2191 

 65482 

 77185 

 70879 

 88329 



Carlisle, Pa 



TJnalashka, Alaska 



Cook County, Illinois. 



Saint Michael's, Alaska. . . 

 Grenada, "W. I 



Average measurements of five females 



May 1, 1845 

 June 7,1873 

 May 13, 1870 

 June 22, 1876 

 Apr. 3,1882 



? ad. 

 ? ad. 

 $ ad. 

 ? ad. 

 ? ad. 



121 

 118 

 113 

 119 



112 



117 



76 



891 65t Stejneger... 1234 Petropaulski, Kamtschat- June 28, 1882 d" ad, 



89166 t 

 92694 

 92693 



1235 

 2296 

 2297 



ka. 



.do , 



.do 



.do 



June 28, 1882 

 Aug. — , 1883 

 Aug. — , 1883 



Average measurements of two males. . . 

 Average measurements of two females 



? ad. 

 (d')ad. 

 (?)ad. 



192 



175 



118 



116 

 124 

 119 



121 

 118 



102 



87 

 116 



82 



109 

 84 



40 



*In most cases the right lateral tail-feather is longer than the corresponding rectrix on the left side. 

 Here the measurements of the longest one is invariably given, as also in the tables above. 



The Brown-bellied Swallow breeds abundantly in and about Petro- 

 j)aulski, where I met it during the months of June and July, 1882. 

 When, in 1883, I left the town, on one of the latter days of May, they 

 had not yet arrived from the south, and at my arrival there again in 

 the middle of September the last one had already disappeared, so that 



