1 1 1 
showing marks of cutting. The piece of antler upon Tablet 
25 illustrates the way in which chisels, such as those upon 
Tablets 16 and 17, were formed. A deep groove was sawn 
about half way through the horn on each side in order to guide 
the fracture ; the severance was then effected by a sharp blow, 
after which the implement was rubbed into shape. 
Objects found in Mound No. 3, " Mound City." 
Cases C 34 to C 36. 
C 34- 
Upon Tablets 15 and 16 are fragments of the "altar." Upon 
Tablets 17 to 22 are fragments of leaf-shaped flint instruments, 
fractured by the heat to which they have been exposed. Nos. 
23 and 24 are two glass dishes containing pieces of manganese 
garnet. No. 25 is a glass dish containing fragments of quartz 
crystals fissured by heat, among which are some unfinished 
implements. 
c 35. 
Upon Tablets 15 to 22 are leaf-shaped flint implements, all 
of which have been exposed to the action of fire. No. 18, 
No. 19, No. 20, No. 21, and No. 22, are good specimens, 
and are nearly perfect. In the dishes No. 23 to 25 are some 
fragments of quartz crystals fissured by heat. 
C 36. 
Upon Tablet 15 and in the glass dish No. 26 are fragments of 
leaf-shaped flint implements. Upon Tablet 1 6 is a barbed spear- 
head of obsidian. Upon Tablets 17 to 21 are fragments of 
arrow- and spear-heads of hyaline quartz, greatly injured from 
the heat to which they have been exposed. The specimens 
upon Tablets 20 and 21 are tolerably perfect, d Tablet 21 is 
part of a stemmed arrow-head of hyaline quartz ; r is a leaf- 
shaped arrow-head of the same material. Upon Tablet 22 
are pieces of copper tube. Upon Tablet 23 is a long, narrow, 
copper chisel. No. 24, 10, is a smoking-pipe of coralline 
limestone, of simple form. No. 25, li, is a stone smoking-pipe, 
* The letters 23, C, 59 appended to the numbers of the specimens refer 
to the several materials described at pp. 106 — 109. 
