• PREHISTORIC WASHINGTON 
PI HEY BRANCH BOWLDER QUARRIES 
LIST OF ILLUSTRATIONS 
1. Boiling Ears of Corn in Washington 373 years ago. 
2. View on Piney Branch, Washington. 
3. The Piney Branch Quarry Site. 
4. Out Crop of Bowlder Gravels. 
5. Bowlder Covered Slopes. 
6. Beginning of Excavation, Piney Branch. 
7. An Exposure of a Refuse Heap Showing Shop Refuse. 
8. Tree Growing in Beds of Chipped Stones. 
9. Lay Figure Group Showing the Indian Quarry Men at Work. 
10. Section of the Quarry Shop as Exposed. 
11. Section of the Quarry Shop as Exposed. 
12. Lay Figures Showing Workmen Breaking and Chipping Bowlders. 
13. Holmes and Dinwiddie at the work of Examination and Collection. 
14. Lay Figures of Quarrymen set up on Quarry Site. 
15. Typical Roughed-out Blades, the Implement Blanks. 
16. Blade Finishing Group at work Employing two forms of 
Pressure Shaping. 
17. Failures in Blade Making, Compared with Supposed Paleoliths. 
18. Failure in Blade Making, the Hump could not be removed. 
19. Chipping by Percussion. 
20. Chipping by Pressure. 
21. Two Forms of the Chipping Work. 
22. Diagram Showing Progress of Bowlder Chipping by Percussion 
and Pressure. 
