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Show 1867.] PROF. NEWTON ON NEW BIRDS' EGGS. 167 amples are professedly figured by Thienemann in his great work (Fortpfl. der gesamm. Vog. tab. lxxxvii. fig. 1 a-c). These do not resemble the eggs in m y possession very much ; and of course, in the incomplete state of that work, we have no information concerning them. Badeker does not seem to have known the egg. AMERICAN WIGEON. « Mareca americana (Gmelin). Two eggs of this bird were sent to me in 1863 from the Smithsonian Institution. They were obtained at Fort Yukon, in June 1861, by the late Mr. R. Kennicott, whose recent death in Russian America is so much to he regretted. They are marked " parent shot," and are somewhat smaller and of a good deal deeper colour than eggs of Mareca penelope ordinarily or perhaps ever are. The two specimens vary somewhat in dimensions and form, one measuring 2*08 inches by 1*44 inch, the other 2*18 inches by 1*41 inch. AMERICAN SCAUP. Fulix affinis (Eyton). I am indebted to the Smithsonian Institution for seven examples of this bird's eggs :-three, from which the parent was shot, obtained by Mr. Kennicott at Fort Yukon, 24th June, 1861; and four out of a nest of nine eggs obtained 26th June, 1863, and sent with the parent by Mr. J. Lockhart. As might be expected, except in size, they greatly resemble the eggs of Fulix marila. The largest of the series, from Mr. Kennicott's nest, measures 2*29 inches by 1*63 inch; the smallest, from Mr. Lockhart's nest, is 2*2 inches by 1*52 inch. SURF-SCOTER. (Edemia perspicillata (Linnaeus). For this rare egg I am indebted again to the liberality of the Secretary of the Smithsonian Institution. It is marked as being from the collection of Mr. Macfarlane, taken 26th June, 1863, on the Arctic coast, east of Anderson River, and "parent shot." No more particulars. The specimen measures 2*32 inches by 1 *55 inch, which is much smaller than any example of CE. nigra that I have seen, and is less warmly coloured than the eggs of that species. Badeker professes to figure two specimens of this bird's egg (Eier Europ. Vog. taf. Ixi. fig. 9 ) ; but, as usual, he does not account for their being in his possession, and it must, I think, be regarded as doubtful whether the originals were authentic. HOODED MERGANSER. Mergus cucullatus, Linnaeus. The next egg I have to mention is the result of an interesting discovery made on the River St. Croix in N e w Brunswick, by Mr. |