EXCHANGE PRICE LIST 



OF 



North American Birds' Eggs Included in the 



American Ornithologist's Union Check List. 



1922 



1910 Price 



A.O.U. Per 



No. Egg 



1 .'Echmophorus occidentalis $ .40 



Western Grebe 



2 Colymbus holbcelli .55 



Holboell's Grebe 



3 Colymbus auritus 35 



Horned Grebe 



4 Colymbus nigricollis californicus .20 



Eared Grebe 



5 Colymbus dominicus brachypter- 



us 95 



Mexican Grebe 



6 Podilymbus podiceps 15 



Pied-billed Grebe 



7 Gavia immer 3.90 



Loon 



8 Gavia adamsi 30.00 



Yellow-billed Loon 



9 Gavia arctica 2.75 



Black-throated Loon 



10 Gavia pacifica 5.50 



Pacific Loon 



1 1 Gavia stellata 3.26 



Red-throated Loon *1.00 



12 Lunda cirrhata 80 



Tufted Puffin 



1.: !<Yatercula arctica arctica 1.25 



Puffin *-60 



13 Fratercula arctica naumanni . . . . 6.00 



Large-billed Puffin 



14 Fratercula corniculata 3.50 



Horned Puffin 



\'> Cerorhinca monocerata 3.50 



Rhinoceros Auklet 



