63 



used as beads, and by a large spiue-fragraent of a recent Echinus, which 

 I noticed among some pieces collected by Mr. Jackson. 



It would exceed the limits of these pages, to the preparation of which 

 we could devote but a few days, to make any further remarks which 

 would so readily suggest themselves. Evidently, the rains in question 

 bear testimony of one of the earliest centers of civilization in this coun- 

 try, and would well repay the investigations of a critical anthropologist. 

 Let us hope that ere long such investigation may be undertaken. 



N. B. — All the drawinf!;s contained iu the following plates are orthographic figures, 

 made by means of a diopter, and reduced with a pantograph from natural size.'^j 



PLATE 23. 



Fig. 1. — Lateral view of skull No. 1. 

 Fig. 2. — Frontal view of the same. 



PLATE 24. 



Fig. 3. — Occipital view of skull No. 1. 

 Fig. 4. — Lateral view of the same. 



PLATE 25. 



Fig. 5. — Basal view of skull M'o. 1. 

 Fig. 6. — Lateral view of skull No. 2. 



PLATE 26. 



Fig. 7. — Frontal view of skull No. 2. • 



Fig. 8. — Occii)ital view of the same. 



PLATE 27. 



Fig. 9. — Vertical view of skull No. 2. 



Fig. 10. — Basal view of the same. Owing to the faulty shading of the occipital region, 

 the occipital bone does not appear to tucn upward as abruptly from the posterior mar- 

 gin of the great foramen as it actually does. 



PLATE 28. 



Fig. 11. — Frontal view of skull No. 3. 

 Fig. 12. — Vertical view of the same. 



PLATE 29. 



Fig. 13. — Lateral view of skull No. 3. 



Fig. 11. — The heaviest outline of the diagram represents a profile-view of skull 1179 

 (Catalogue U. S. A. Med. Museum) from Abiquiu. The less heavy line represents the 

 same view of a Guatemala Indiau, No. 276 of the catalogue, aud referred to on page 56,. 

 ■while the dotted line represents the profile of a Peruvian, No. 250 of the catalogue, and. 

 mentioned on the same page. 



