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The Origin of Coal
From Introduction: "The purpose of the studies that form the basis of this report was to learn from microscopic examinations of coal how far and in what ways the grouping of coal by types depends on differences in the kinds of plant material from which it was formed and on the conditions of its accumulation, or how far the special characters or qualities of coal of any type were determined by the nature and the state of the plate debris from which the coal was formed."
Date:
1913
Creator:
White, David & Thiessen, Reinhardt
Object Type:
Report
System:
The UNT Digital Library
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples
From Introduction: "This volume contains the descriptions of the samples whose analyses are published in the preceding volume, Part I of this bulletin. The descriptions have been compiled from the notebooks of the persons who collected the samples, have been condensed from accounts given in published reports of the United States Geological Survey, or have furnished by the collection themselves. Inasmuch as the descriptions represent the work of many persons during a period of six years, and inasmuch as they were recorded under widely differing conditions, they necessarily vary in fullness detail."
Date:
1913
Creator:
Lord, N. W.
Object Type:
Report
System:
The UNT Digital Library
[Postcard of Front Street in Tanana]
Postcard of a wooden cabin with a sign reading "Pinkiert's," across from a group of large white tents. A wooden bridge crosses the river towards the cabin. The picture is described as "Front Street, Tanana, Alaska." On the back, the letter reads, "This is the city adjoining our fort. It is called "The Coney Island" of the Yukon. Pop. 200. Next to Daveon, it is the largest settlement on the Yukon river. Does it remind you of Beaumont?" The postcard is addressed to "Miss Mamie McFadden Paso del Norte El Paso, Texas."
Date:
October 28, 1913
Creator:
unknown
Object Type:
Postcard
System:
The Portal to Texas History
[Postcard of Resurrection Bay, Alaska]
Postcard of a photograph of rippling water in a bay bordered by snowy mountains on the other side of the bay. Handwritten notes at the bottom of the photo identify the area as Resurrection Bay in Alaska. The other side of the postcard is blank except for postcard markings.
Date:
1913
Creator:
Pedersen, L. H.
Object Type:
Postcard
System:
The Portal to Texas History