1. Large arrow point or small flint hoe, length 3 inch 2. Sections of human skull 3. Outer shell of sacred conch shell 4. Perfect shape hammer stone, granite 5. Pottery ear from vessel 6. Potsherd, incised design, color black 7. Pottery, ducks head 8. Pottery, engraved design 9. Potsherd, reed, marked design, color red 11. Potsherd, reed, marked design, color yellow 12. Potsherd, raised, marked design, color black 13. Potsherd, reed, marked design, color red 14. Potsherd, reed, marked design, color brown 15. Potsherd, grass, marked design, color brown 16. Potsherd, incised, marked design, color black 17. Potsherd, raised, marked design, color brown 19. Potsherd, grass, marked design, color yellow 20. Inner spiral of sacred conch shell 21. Potsherd, grass, marked design, color brown 22. Fragment of polished discoidal stone 23. Perfect barbed arrow point 1 inch long, semi-circular row around No. 23, show characteristic Cahokia arrow points 24. Copper ornament 25. Pipestone 26. Agate 27. Gavel sand stone polisher 28. Quartz crystal 30. Pieces of human arm bone 31. Incomplete flint artifacts [Illustration: Plate No. 3 West Twin Grove Indian Camp Site on farm of Chas. F. Kauffman, May, 1912] [Illustration: Plate No. 4 Artifacts made by aborigines on Camp Site shown on Plate No. 4] Cuts furnished by C. H. Robinson West Twin Grove Camp Site Plate No. 4. 1. Gamestone 2-1/4 (problematical) gray granite 2. Scraper, pink flint 3. Knife 4 inches long, yellow flint, (between 30 and 4) 4. Bird arrow point, 3/4 inches long, white flint 5. Double notched arrow, curved body, white flint 6. Notch of arrow, flat on one side 7. Scraper--mottled blue and white flint 8. Barbed arrow, to remain in wound 9. Non-barbed arrow, to be withdrawn from wound 10. Common chert arrows 11. Red flint arrow 12. Heavy chert arrow 13. Blue flint arrow 14. Rare ceremonial stone, brown flint 15. Drill, white flint 17. Blunt arrow, white flint 18. Drill, white flint 19. Half completed leaf arrow, white flint 20. Finely finished spear point, pink flint 22. Common arrow 23. Perfect shape leaf arrow, blue flint 24. Fragment of pottery, porphyry tempered 25. First piece of arrow found on camp-site 26. Drill, white flint 27. 2/3 completed leaf shape arrow, white flint 28. Perfect hafted scarper, white flint 29. Wide base arrow, white flint 30. Perfect knife, mottled flint, red, white and blue 31. Perfect double bevel arrow, white flint