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Status of the public domain June 30, 1915, in 11 Western States.-

World's production of pig iron in 1913..

One man with one metal-cutting machine, equipped with tungsten “high-

speed steel tools, can now do as much work as could five men with

five machines equipped with the carbon steel tools formerly used -----

Comparative quantities of electric light obtainable for the same price

from the carbon filament lamp of 15 years ago and the tungsten lamp

of to-day

Coal reserves and production in the United States compared with the

remainder of the world.---.

Growth in annual production of Portland cement in the United States,

1880 to 1913_.

Production of Portland cement and value of Portland cement in the United

States 1890–1914.-.

Range in average price per barrel of Portland cement, 1880-1913_.

Curve showing production and exportation of phosphate rock, 1904–1913.

Curves showing growth in quantity and value of salt produced in the

United States, 1880-1914..

Production of fluorspar in the United States, 1883–1913, and imports,

1910–1913

Production of sheet mica in 1880 and 1913 compared.

Diagram showing production of manufactured graphite in the United

States from inception of the industry in 1897 to 1914, inclusive.---

Map of the United States showing areas covered by geologic maps pub-

lished prior to July 1, 1915---

Map of the United States showing areas covered by topographic surveys

prior to July 1, 1915---

Organization chart of the Bureau of Mines---

New buildings of the Pittsburgh experiment station --

Map showing location of National Parks -

Diagram showing suggested organization for supervision of national parks

Diagram showing appropriations, revenues, and visitors, Sequoia National

Park

Diagram showing appropriations under Interior Department, revenues,

and visitors, Yellowstone National Park_-

Diagram showing appropriations, revenues, and visitors, Wind Cave

National Park.---

Diagram showing appropriations, revenues, and visitors, Yosemite

National Park ----

Diagram showing appropriations, revenues, and visitors, Glacier National

Park

Diagram showing appropriations, revenues, and visitors, Mesa Verde

National Park

Diagram showing visitors, Sullys Hill Park.

Diagram showing revenues and visitors, Hot Springs Reservation --

Diagram showing appropriations, revenues, and visitors, General Grant

National Park..

Diagram showing appropriations under Interior Department, revenues,

and visitors, Mount Rainier National Park.----

Diagram showing appropriations under Interior Department, revenues,

and visitors, Crater Lake National Park.---

Diagram showing appropriations, revenues, and visitors, Platt National

Park

Diagram showing appropriations under Interior Department, revenues,

and visitors, all national parks---

Map of Yellowstone National Park..

Map of Yosemite National Park -

Map of Sequoia and General Grant Parks.

Map of Mount Rainier National Park.-

Map showing railroad routes to Mesa Verde and Rocky Mountain Na-

tional Parks -----

Map showing routes to Crater Lake_-

Map of Crater Lake National Park_-.

Map of the Glacier National Park..

Map of Wind Cave National Park -

Underground survey of cave in Wind Cave, National Park_-

Diagram showing Sullys Hill Park, North Dakota---

Diagram showing Casa Grande Ruin Reservation, Arizona..

Diagram showing Devils Tower National Monument, Wyoming-

Map showing location of national monuments -

Diagram showing Montezuma Castle National Monument, Arizona -

Diagram showing El Morro National Monument, New Mexico.----

Diagram showing Chaco Canyon National Monument, New Mexico_

Diagram showing Muir Woods National Monument, California-

Diagram showing Pinnacles National Monument, California..

Diagram showing Tumacacori National Monument, Arizona..

Diagram showing Mukuntuweap National Monument, Utah-----

Diagram showing Shoshone Cavern National Monument, Wyoming-

Diagram showing Natural Bridges National Monument, Utah---

Diagram showing Gran Quivira National Monument, New Mexico -

Diagram showing Sitka National Monument, Alaska..

Diagram showing Rainbow Bridge National Monument, Utah -

Diagram showing Lewis and Clark Cavern National Monument, Montana.

Diagram showing Colorado National Monument, Colorado.-----

Diagram showing Petrified Forest National Monument, Arizona.

Diagram showing Navajo National Monument, Arizona -

Diagram showing Navajo National Monument, Arizona (as amended by

proclamation Mar. 14, 1912)-----

Diagram showing Papago Saguaro National Monument, Arizona..

Diagram showing Cinder Cone National Monument, California.

Diagram showing Lassen Peak National Monument, California.

Diagram showing Gila Cliff Dwellings National Monument, New Mexico--

Diagram showing Tonto National Monument, Arizona---

Diagram showing Grand Canyon National Monument, Arizona -

Diagram showing Jewel Cave National Monument, South Dakota.

Diagram showing Wheeler National Monument, Colorado---

Diagram showing Oregon Caves National Monument, Oregon.--

Diagram showing Devil Postpile National Monument, California.--

Diagram showing Mount Olympus National Monument, Washington.

Map of Rocky Mountain National Park.----

Map showing courses for Oertel system of mountain climbing-

Map of a portion of Hot Springs---

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Director and Chief Engineer of the Reclamation
Service-----

----Arthur P. Davis.
Chief of Construction, Reclamation Service----Sydney B. Williamson.
Chief Law Officer, Reclamation Service----- .Will R. King.
Comptroller, Reclamation Service--- ---William A. Ryan,

Director of the Bureau of Mines.

-Van. H. Manning.

Chairman Alaskan Engineering Commission----William C. Edes.
Member Alaskan Engineering Commission----- -Lieut. Frederick Mears, U. S. A.
Member Alaskan Engineering Commission.----- Thomas Riggs, jr.

Governor of Alaska.

--J. F. A. Strong.

Governor of Hawaii.

Lucius E. Pinkham.

Superintendent of Capitol Building and Grounds_. Elliott Woods.

Superintendent of Government Hospital for the

Insane..

Dr. William A. White.

President Columbia Institution for the Deaf.--.Dr. Percival Hall,

President Howard University

Dr. Stephen M. Newman.

Surgeon in Chief Freedmen's Hospital.-----

Dr. William A. Warfield,

REPORT OF THE SECRETARY OF THE INTERIOR.

8161o -INT 1915—VOL ]—l

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