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  • All fields: acid
(240 results)



Display: 50

    • Assay outfit, Buckeye Cabin

    • A boy and a dog sit beside Buckeye Cabin in the La Sal Mountains, Utah. A sign reads, "Assay Office Buckeye Cabin." On a table are reagent bottles which read, "Acid Nitric HNO₃," "Ammonium Hydroxide NH₄OH," and "Acid Hydrochloric HCL." Also on...
    • Assaying apparatus--Utah--1890-1900.; La Sal Mountains (Utah)--1890-1900.; Boys--Utah--1890-1900.; Equipment--Utah--1890-1900.; Log cabins--Utah--1890-1900.
    • 1897 Aug. 24
    • Del Norte mineral well has flowed for half a century, in heart of town

    • A stone shelter is built over the Del Norte mineral well in Del Norte, Colorado, in Rio Grande County. The shelter is a sandstone structure with a hipped roof with shingles. The silhouette of the well is visible underneath the shelter. A pickup...
    • Del Norte (Colo.)--1940-1950.; Wells--Colorado--Del Norte--1940-1950.
    • [between 1940 and 1950]
    • The Annual: East Denver High School, 1916

    • 1916 Yearbook from East Denver High School.
    • East High School (Denver, Colo.)--Students--Yearbooks.; Denver Public Schools--Students--Yearbooks.; School yearbooks--Colorado--Denver.
    • 1916
    • East High spotlight: 21st year no 9

    • Newspaper produced by East High School of Denver, Colorado. Included in the paper are photographs of students, articles on school events and sports.
    • East High School (Denver, Colo.)--Students--Writings.; East High School (Denver, Colo.)--Periodicals.; High schools--Colorado--Denver--Periodicals.; Public schools--Colorado--Denver.; High schools--Colorado--Denver.; East High School (Denver, Colo.)
    • 1943 March 4
    • Illium [sic] Loop

    • In a valley, a Denver and Rio Grande Railroad train steams across a trestle on a loop of track identified as Ilium Loop near Ilium (San Miguel County), Colorado. Shows spilt rail fences, log and wood frame buildings, railroad boxcars on a spur, and...
    • San Miguel County (Colo.)--1880-1900.; Denver and Rio Grande Railroad Company--1880-1900.; Railroad bridges--Colorado--San Miguel County--1880-1900.; Railroad tracks--Colorado--San Miguel County--1880-1900.; Railroads--Colorado--San Miguel...
    • [between 1880 and 1900?]
    • School of Mines

    • Interior view of a classroom laboratory, Colorado School of Mines, Golden, Jefferson County, shows a large group of male students conducting experiments with glass beakers at lab tables with sinks. Glass bottles with stoppers are labeled "ammon...
    • Golden (Colo.)--1920-1930.; Classrooms--Colorado--Golden--1920-1930.; Universities & colleges--Colorado--Golden--1920-1930.; Colorado School of Mines.
    • [between 1920 and 1930]
    • Mine assay office

    • Interior view of the Fifty Gold Mines Corporation mining assay laboratory in Blackhawk, Colorado; shows balance-scales, a distiller, chemical glassware including beakers, funnels, flasks, alembics, mortars, and bottles labeled: "Nitric Acid." A man...
    • Fifty Gold Mines Corporation--1900-1910.; Assaying--Colorado--Blackhawk--1900-1910.; Blackhawk (Colo.)--1900-1910.; Gold--Colorado--Blackhawk--1900-1910.; Laboratories--Colorado--Blackhawk--1900-1910.; Mining--Colorado--Blackhawk--1900-1910.
    • [between 1906 and 1910?]
    • Trout Lake, Colo.

    • View of San Miguel Peak and Trout Lake in San Miguel County, Colorado. Snow covers the mountains.
    • San Miguel County (Colo.)--1880-1900.; San Miguel Peak (Colo.)--1880-1900.; Trout Lake (San Miguel County, Colo. : Lake)--1880-1900.; Lakes & ponds--Colorado--San Miguel County--1880-1900.
    • [between 1880 and 1900?]
    • East High spotlight: vol 28 no 13

    • Newspaper produced by East High School of Denver, Colorado. Included in the paper are photographs of students, articles on school events and sports.
    • East High School (Denver, Colo.)--Students--Writings.; East High School (Denver, Colo.)--Periodicals.; High schools--Colorado--Denver--Periodicals.; Public schools--Colorado--Denver.; High schools--Colorado--Denver.; East High School (Denver, Colo.)
    • 1942 March 26
    • How we cook in Colorado : choice recipes

    • Cookbook created with submissions from the Ladies of First Baptist Church.
    • Cooking, American--Colorado.; First Baptist Church (Denver, Colo.); First Baptist Church (Denver, Colo.)--History.
    • 1907
    • East Denver High School Annual: 1909

    • 1909 Yearbook from East Denver High School.
    • East High School (Denver, Colo.)--Students--Yearbooks.; Denver Public Schools--Students--Yearbooks.; School yearbooks--Colorado--Denver.
    • 1909
    • Municipal Facts: Volume 10 Numbers 7 and 8, 1927 July-August

    • Newsletter produced everty two months by the City of Denver highlighting the civic, administrative, and informational aspects of government within the City.
    • Local government--Colorado--Denver.; Cities and towns--Colorado--Denver.
    • 1927 July-August
    • East Denver High School Annual: 1910

    • 1910 Yearbook from East Denver High School.
    • East High School (Denver, Colo.)--Students--Yearbooks.; Denver Public Schools--Students--Yearbooks.; School yearbooks--Colorado--Denver.
    • 1910
    • History of Denver

    • Comprehenisve study of the history of the Denver area before, during, and after the founding of the city.
    • Cities and towns--Colorado--Denver.
    • 1901
    • East High spotlight: vol 28 no 10

    • Newspaper produced by East High School of Denver, Colorado. Included in the paper are photographs of students, articles on school events and sports.
    • East High School (Denver, Colo.)--Students--Writings.; East High School (Denver, Colo.)--Periodicals.; High schools--Colorado--Denver--Periodicals.; Public schools--Colorado--Denver.; High schools--Colorado--Denver.; East High School (Denver, Colo.)
    • 1942 February
    • Buckeye Cabin, La Sal Mt's. Utah

    • A boy sits in front of Buckeye Cabin in the La Sal Mountains, Utah. A sign reads, "Assay Office Buckeye Cabin." On a table are reagent bottles, a box of assay weights, a beaker, test tubes, glass-stoppered acid bottles, evaporating dishes, and a...
    • Assaying apparatus--Utah--1890-1900.; La Sal Mountains (Utah)--1890-1900.; Boys--Utah--1890-1900.; Equipment--Utah--1890-1900.; Log Cabins--Utah--1890-1900.
    • 1897 Aug. 24
    • Indiana Mining Accidents : 1891-1915

    • Includes a brief history of mining in Indiana, and an alphabetical index by miner’s name for fatal and nonfatal accidents in
    • Mine accidents--Indiana--Indexes.
    • 2007
    • Illinois Mining Accidents 1889 to 1925

    • An alphabetical listing of people who were killed in mining accidents in Illinois from 1889 to 1925.
    • Mine accidents--Illinois--Indexes.
    • 2007
    • Park Hill Topics Volume 7 No. 28

    • A weekly newspaper distributed to the residents of the Park Hill neighborhood. This contains articles about neighborhood events, news, and gossip. As well as advertisements for local businesses.
    • Community newspapers--Colorado--Denver.
    • 1939 July 14
    • Nova Scotia Mining Accidents 1898 to 1916

    • An alphabetical listing of people who were killed in mining accidents in Nova Scotia from 1898 & 1904-1916.
    • Mine accidents--Nova Scotia--Indexes.
    • 2007
    • Pennsylvania Mining Accidents 1869 - 1916

    • History of mines and mining in Pennsylvania, and an alphabetical index by miner’s name for fatal and non-fatal mine accidents in Pennsylvania for the years 1869, 1871, 1872, 1874 (partial), 1875, 1877, 1879, 1880, 1882, 1883, 1884, 1887, 1888,...
    • Mine accidents--Pennsylvania--Indexes.
    • 2007

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