F. GEOGRAPHY. 255 



the Wind River Mountains to Camp Brown, on the Little 

 Wind River ; thence across the Wind River valley, over the 

 Owl Creek Mountains, and across the valley of Owl Creek 

 above the junction of the forks. They then proceeded to 

 Gray Bull River; thence passing through Stinking - water 

 valley, they came to an eminence which was ascended to 

 the source of the Yellowstone Lake ; and crossing through a 

 narrow pass, they descended to the opposite side of the lake, 

 then down the Yellowstone River to the bridge, crossing 

 which they moved up the river to the Falls, and thence 

 westward over the divide to the east fork of Madison River. 

 From this point they journeyed through the lower and upper 

 basins of Fire -Hole River, and crossing the divide at the 

 southwest extremity, and ascending its shore until they 

 reached the Upper Yellowstone River, they passed on up- 

 ward to the " Two Ocean Water." This is a mountain stream 

 which flows down into a little valley, where it splits into two 

 rivulets, one of which, by way of the Snake and Columbia 

 rivers, empties into the Pacific Ocean, and the other, through 

 the Yellowstone and Missouri, finds its way to the Gulf of 

 Mexico. 



Descending for a short time one of the tributaries of the 

 Snake River, the expedition found an easy pass to the head 

 Maters of Wind River, down which they passed, returning 

 to Camp Brown to disband. 



A report by Professor Comstock, in the Journal of Science 

 for December, gives an interesting statement of the general 

 features of the geology of the country, to which we refer our 

 readers. 4 Z>, December^ 1873, 426. 



INTEROCEANIC. CANAL EXPLOKATIONS BY THE UNITED STATES 



NAVY. 



The expeditions organized under authority of Congress 

 for the survey of the Darien and Nicaragua routes, w4th a 

 view of constructing an interoceanic canal, have completed 

 their duties, and their reports have been already submitted 

 to the Navy Department, apparently making up the data for 

 the proper consideration of the subject of a ship canal be- 

 tween the Atlantic and Pacific oceans. 



The Darien survey was directed more particularly toward, 

 the region of the Napipi, and for the purpose of settling how 



