35 



having a prolate spheriod shape; pure white — one with a slight 

 yellowisa tinge. Only two are marked and these only faintly so, one 

 liaving two large palmate leaf shaped spots (suggesting common 

 maple leaf) of faint yellowish brown, and the other, lialf -dozen very 

 small specks of faint purplish brown about one end; .74x.60, .73x.6»>, 

 .75x.65 and .71x.61 inch. 



100. Ampelis cedrorum. Cedar Waxwing. (Plate IV, 

 No. 100).— July 21, 1893. Collected by B. S. Bowdish, Phelps, N. 

 Y. Four fresh eggs; rounded ovate, light bluish-stone, much 

 lighter than usual with the species and unmarked, except that one 

 lias one and another has two very small indistinct shell markings of 

 bluish-stone near the larger ends; .82x.68, .81x.68, .87x.68 and 

 .84x.68 inch. 



101. Icteria virens. Yellow-Breasted Chat.— May 26, 

 1894. Collected by J. Warren Jacobs, near Waynesburg, Pa. 

 Four slightly incubated eggs; white, sparingly ana finely dotted 

 with lavender and vinaceous-ruf ous, noticeably thickest on larger 

 end. In shape these eggs vary greatly, two being ovate, one 

 elongate ovate and one departing from the elliptical ovate in a 

 prominent kink to one side; .89x.66, ,87x.64, .96x.64 and ,87x.64 

 inch. 



o 



VII.— Abnormal Size, Shape and Coloration. 



102. Larus occidentalis. Western Gull.— June 17, 1895. 

 Collected by Chester Barlow, Farallone Island, Pacific Ocean. 

 One fresh egg, elliptical. Olivaceous brown, marked, chiefly on 

 one end, with blotches and blurs of black, dark brown and drab, 

 in general appearance very much resembling an egg of the Loon 

 (Urinator imber) in miniature; 2.65x1.52 inches. 



The average size of a set of three eggs of this species, in my 

 collection, is 2.87x1.96 inches. 



103. Melospiza fasciata. Song Sparrow. (Plate IV, 

 No. 103j.— July 30, 1896. Collected by Wm. L. Kells, Listowell, 

 Ont., Can. Three fresh eggs; nest evidently deserted. Abnor- 

 malism in the three essential points set forth in the heading for 

 this group is strongly characteristic of this set; one is a small 

 spherical runt, mottled olivaceous in color and measures .46x.39 

 inch. It contained no yolk. The second is a double yolked, extreme- 

 ly long egg for this species, fusiform, or more nearly double ovate 

 pyriform in shape, marked with vandyke brown, heliotrope pur- 

 ple and vinaceous over the entire shell, becoming confluent in 

 small circular patch on one end; 1.08x.54 inch. The third is 

 normally ovate, marked thickly over a pale bluish-ground with 

 same colors as the second, becoming confluent on larger end; 

 .79x.58 inch. 



104. Melospiza fasciata. Song Sparrow.— June 14, 1887. 

 Collected by Frank L. Burns, Berwyn, Pa. One infertile egg, 

 taken from a nest containing three half grown young birds. 

 Solid white, spairingly blotched with faint lavender, cinnamon- 

 rufous and vinaceous; rounded ovate or more nearly spherical; 

 .50X.42 inch. 



105. Arnpelis cedrorum. Cedar Waxwing.— July 19, 

 1891. Collected by J. Warren Jacobs, Greene Co., Pa. Three 



