406- INDEX OF AUTHORS. 



On Ores from Comstoek Lode 342 



On Geological Position of Coal 356 



On Fossil Tooth from Douglas Flat 356 



On Oreodon Jaw 363 



On Visit to Oregon, etc 363 



On Ores from Nevada and Mexico 372 



On Minerals of Pacific Coast 372, 374 



On Depression of Death Valley 129, 376 



On Maps of California 386 



Williamson, Col. R. S. — On the Height of Mount Hood 364 



On Depression of Death Valley 129, 376 



Wilson, John. — Indian Relics from Chihuahua 160 



Wood, Prof. A. — Ascent of Mount Hood 292 



Botanical Collections 329 



