570 C. H. Mathewson—Metallograpliic Description 



Object No. 1, fig. 9. Extreme length, 2 3/4"; extreme width 

 (blade), 2 1/2". 



Object No. 2, fig. 10. Extreme length, 2 3/4"; thickness 

 (stem), 3/32". 



Object No. 3, fig. 11. Extreme length, 12"; diameter of star, 

 1 1/8". 



Object No. 4, fig. 12. Diameter, 3/4". "Width of aperture, 

 3/16". 



Object No. 5, fig. 13. Eear of figure to tip of blade, 5 1/8". 



Object No. 6, fig. 14. Extreme length, 5 1/4"; average width, 



1 3/16". 



Object No. 7, fig. 15. Extreme length, 3" ; rear of head to nose, 

 9/16". 



Object No. 8, fig. 16. Extreme length, 3"; extreme width (at 

 edge), 2 7/8". 



Object No. 9, fig. 17. Top to bottom, 2 5/8"; length of 

 blade, 3 7/16". 



Object No. 10, fig. 18. Extreme height, 1" ; diagonal, 2 3/4". 



Object No. 11, fig. 19. Extreme length, 10 3/4"; Extreme 

 width (at head), 15/16". 



Object No. 12, fig. 21. Diameter of disc, 3 1/8". 



Object No. 13, fig. 22. Extreme length, 2 5/8" ; extreme width, 

 9/16". 



Object No. 14, fig. 20. Top to bottom, 3 1/4" ; length of blade, 

 3 3/8". 



Object No. 15, fig. 23. Top to bottom, 4 1/16"; width at 

 top, 4". 



Object No. 16, fig. 24. Extreme length, 2 3/4"; average 

 width, 1 7/16". 



Object No. 17, fig. 25. Irregular, approximately 3 1/4" X 



2 1/4". 



Object No. 18, fig. 26. Extreme length, 18"; diameter of 

 loop, 1/4". 



Object No. 19, fig. 27. Height, 1 1/4". 



Object No. 20, fig. 28. Length, 17 1/8" ; maximum width, 1". 



Object No. 21, fig. 29. Length, 1 7/16"; width, 1/2". 



The photo-micrographs have been reduced one-eighth in the 

 engravings. Stated magnifications refer in all cases to the 

 original photos. 



Object No. 1 (cf. Table I). 



The knife shown in fig. 9, while similar in general outline 

 to the numerous thin knives of the collection which are repre- 

 sented by figs. 17 and 20, is more substantial and far better 

 executed. From its appearance, the tapered shank might have 

 been hafted or forged into the wedge-shaped blade which is 



