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The relations of the traps of the Newark system in the New Jersey region
No abstract available.
Authors
Nelson Horatio Darton
Volume XIII: The tertiary insects of North America
That creatures so minute and fragile as insects, creatures which can so feebly withstand the changing seasons as to live, so to speak, but a moment, are to be found fossil, engraved, as it were, upon the rocks or embedded in their hard mass, will never cease to be a surprise to those unfamiliar with the fact. "So fragile," says Quinet, "so easy to crush, you would readily believe the insect one of
Authors
Samuel H. Scudder
III.-The Work of Prof. Henry Carvill Lewis in Glacial Geology
The recent notice of the life and work of Prof. Henry Carvill Lewis, whose lamented death occurred in Manchester, July 21st, 1888, in his thirty-fifth year, well indicates the wide range of his scientific labours. He published valuable results of investigations in astronomy, mineralogy and petrology, and especially in glacial geology, the last being based on his exploration of the drift and its te
Authors
Warren Upham
II.-Subaerial Deposits of the Arid Region of North America
A Comparison of adobe with the loess of China forms the concluding part of this paper; but as no analyses of the Chinese deposit are known to me, a few analyses of the loess of the Mississippi Valley are inserted, not with the assumption, however, that the deposits bearing the same name in these two regions are identical. A comparison of this table with the one showing the composition of adobe is
Authors
Israel C. Russell
Descriptions of fourteen new species and one new genus of North American mammals
No abstract available.
Authors
Clinton Hart Merriam
Eighth annual report of the United States Geological Survey to the Secretary of the Interior, 1886-1887: Part 1
The Geological Survey was organized, with Mr. Clarence King as Director, in March, 1879. In March, 1881, Mr. King resigned and the present Director was appointed. From its organization to the present time the Survey has steadily grown as Congress has enlarged its functions and increased its appropriations. During this time the scientific organization has gradually developed to the condition set fo
Authors
J. W. Powell
Eighth Annual report of the United States Geological Survey to the Secretary of the Interior, 1886-1887: Part 2
No abstract available.
Authors
J. W. Powell
Formulas and tables to facilitate the construction and use of maps
No abstract available.
Authors
Robert Simpson Woodward
I.-Subaerial Deposits of the Arid Region of North America
The subaërial deposits now accumulating in the arid portion of the United States may be divided into four classes: 1, Eolian Sands; 2, Talus Slopes; 3, Alluvial Cones; and 4, Calcareous Clays to which no specific name has been applied, but which, for reasons stated below, will be called “adobe” in this paper.
Authors
Israel C. Russell
Instructions to rain-fall observers of U.S. Geological Survey
In the prosecution of the general "survey of the arid lands for purposes of irrigation," authorized by Congress to be undertaken by the U. S. Geological Survey, a determination of the amount of water supplied by the natural rain and snow fall in different localities is of fundamental importance. To obtain this knowledge the Geological Survey must depend in large measure upon the residents, to whom
Authors
Latitudes and longitudes of certain points in Missouri, Kansas, and New Mexico
No abstract available.
Authors
Robert Simpson Woodward