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POPULAR SCIENCE REVIEW. 
That the breaking off of the beak in this way might happen, 
other fossils testify; as, for example, the Sheppey cranium 
figured by Koenig in his “ leones ” as a Larus ; and by Pro- 
fessor Owen in his “ British Fossil Mammalia and Birds,” as 
Halcyornis toliapicus (Plate XVII., fig. 5a), from which the beak 
is entirely absent. The figures of the lower mandibles of the 
Montmartre birds given in Cuvier’s “ Ossemens Fossiles,” show 
what kind of traces they would leave (Figs. 3, 4), and some 
markings on the Archmopteryx slab are singularly like the im- 
print in Cuvier’s Plate 155, fig. 1 (see Plate XVII., fig. 4). 
In the British Museum there are many specimens of much 
interest besides this transcendentally valuable and instructive 
Archaeopteryx. There may be seen limb-bones of the gigantic 
Dinornis, the New Zealand Moa, and the enormous foot-tracks 
in the Connecticut sandstone. There also are specimens of 
fossil feathers from Bonn and Aix, and the wonderful eggs of 
the BEpyornis. There too are strange unnamed bones from the 
Sivalik Hills of India. And these bird-remains may possess a 
higher interest hereafter for our readers when they know how 
rare are the fossil remains of the ancient inhabitants of the air. 
EXPLANATION OF PLATE XVII. AND WOODCUTS. 
Figs. 1 and 2. Supposed beak of Archaeopteryx, or fish-head (Fig. 1 being the 
impression in the Archaeopteryx slab of the beak, or fish-head, Fig. 1, 
in the counterpart of the slab). 
Figs. 3 and 4. Lower mandibles of fossil birds from Montmartre. 
Fig. 5. Cranium, without the beak, of the Sheppey bird ( Halcyornis toliapicus). 
Fig. 6. Wing of bird ( Falco peregrinus). s, scapula ; h, humerus ; u, ulna ; 
r, radius ; c, carpals ; m, me, metacarpals ; p, phalanges. 
Fig. 7. Wing of Pterodactyle. s, scapula ; h, humerus ; r, radius ; u, ulna ; 
x, pinion (= little finger of human hand). 
Fig. 8. Part of wing of bat. u, r, ulna and radius ; c, carpals ; me, meta- 
carpals, or wing-fingers ; t, wing-hook (= human thumb). 
Fig. 9. Head and jaws of Pterodactyle (P. longirostris). 
Fig. 10. Part of wing of Chaja Screamer ( Chauna chavaria), with two wing- 
spurs. 
Fig. 11. F oot of Archseopteryx (natural size). 
Fig. 12. Foot of a long-tailed Pterodactyle, from Pappenheim (natural size). 
Fig. 13. A foot-claw of Falcon. 
Fig. 14. Fossil remains of the Archseopteryx (about one-tenth linear), c, 
costae ; s c, scapula ; h, humerus ; u, ulna ; r, radius ; i, ilium ; 
/, femur ; t, tibia ; mt, metatarsus ; . p , phalanges ; hr, brain ; 
b, supposed beak, or fish-head ; x, x', carpal- or wing-hooks. 
Fig. 15. Carpal-hook or wing-claw of Archseopteryx (natural size). 
