CONTENTS. XI 



Page. 



8. Stone implemeuts 651 



Fig. 3. Flake of gray aud black striped jasper. 

 Fig. 4. Flake of brownish-yellow jasper. 



9. Stone implements 653 



Fig. 5. Flake of black flint. 



Fig. 6. Implement of yellowisk flint. 

 Fig. 7. Flake of brownish-black flint. 



10. Stone implement 653 



Fig. 8. Chipped stone of chocolate-brown quartzite. 



11. Stone implement 655 



Fig. 9. Chipped stone of gray flint or jasi)er. 



12. Stone implements 655 



Fig. 10. Flake of brownish-black flint. 



Fig. 11. Flake of black flint.' 



Fig. 12. Flake of gray jasper. 



Fig. 13. Modern stone implement of gray quartzite. 



BIAPS. 



1. Map of the mining regions of Clark's Fork of the Yellowstone 47 



2. Map of Lake Henry and the sources of the West Fork of Snake Eiver 56 



3. Map of Cliff (or Wade's) Lake .-.. 61 



4. Map of the Shoshone Geysers 244 



5. Mail of the sources of Snake Eiver , .255 



DIAGRA3IS. * 



Diagram illustrating the phylogeny of the Mammalian orders 648 



Diagram illustrating the phylogeny of the Testudinata 649 



Diagram showing the curves of the horary oscillations of the barometer at Fort 



HaU 816 



