STRUCTURE AND HABITS OF ARCH2EOPTERYX. 287 



'Plate XV. 



A photograph of the Berlin specimen of Archceopteryx taken before the 

 skull and certain other parts were as fully exposed as they now are. (Scale 

 5 : 17). 



1. First digit of left ruanus. 2. Second ditto. 3. Third ditto. 4. Eadiale 

 of left carpus. 5, 6, 7. First, second, and third digits of right manus. 8. 

 Region of right wing which in the specimen lies lower than the visible bones 

 of the hand and lower than the region marked 10. 9. Primary quills of right 

 wing. 11. Small portion of matrix lying upon proximal end of humerus. 

 (See reference to this in the text.) 12. Yellow stain resembling, in the photo- 

 graph, a shadow. 13. Cnemial crest. 14. "Abdominal" or ventral ribs. 

 15. Feathers of crural aeroplane. 16. J oint between second and first phalanges 

 of third digit. 17. Left femur. 



The specimen was illuminated at the time of photographing by light falling 

 upon it from above and in front and slightly to the left. 



Plate XVI. 



ARCHiEOPTERYX. 



From a photograph, one-quarter natural size, of the specimen in the British 

 Museum (Natural History), taken by kind permission of Dr. Henry Woodward, 

 F. R. S. , Keeper of the Geological Department. 



