. Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and Lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds . Fk;. 4. —Egg-drills, difterent sizes, uat.•; after Pig. 5. — Instruments for blowing eggs; after Newton, a, b,blow-pipes, i nat. size ; c, wire for cleansing them ; d, syr
. Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and Lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds . Fk;. 4. —Egg-drills, difterent sizes, uat.•; after Pig. 5. — Instruments for blowing eggs; after Newton, a, b,blow-pipes, i nat. size ; c, wire for cleansing them ; d, syringe, iuat. size (the ring of the handle must be large enough to insertthe thumb); c, bulbous insufflator, for sucking eggs. til in pair of sciss(_)rs, light spring for-ceps, some little hooks, and a smallsyringe. They are inexpensive, andmay be had of any dealer in natur-alists supplies. (See figs. 4-7.) Eggsshould never be blown in the old way of making a hole at each end ; nor are two holes any-where usually required. Opening should be efiected on one side, preferably that showing leastconspicuous or characteristic markings. If two are made, they should be rather near together ;on the same side at any rate. But one is generally sufficient, as the fluid contents can escapearound the blow-pipe. Holding the egg gently but steadily in the fingers,^ the point of The usual method of emptying eggs through one small hole is doubtless supposed to be a very modern
Size: 1566px × 1595px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1896
