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Articles 11851 - 11880 of 11973

Full-Text Articles in Physical Sciences and Mathematics

Nautiloid Cephalopods Of The Pennsylvanian System In Mid-Continent Region, A. K. Miller, Carl O. Dunbar, G. E. Condra Jan 1933

Nautiloid Cephalopods Of The Pennsylvanian System In Mid-Continent Region, A. K. Miller, Carl O. Dunbar, G. E. Condra

Conservation and Survey Division

No abstract provided.


The Grenola Formation, G. E. Condra, C. E. Busby Jan 1933

The Grenola Formation, G. E. Condra, C. E. Busby

Conservation and Survey Division

No abstract provided.


The Missouri Valley Traverse In Iowa North Of The Jones Point Deformation, G. E. Condra Jan 1933

The Missouri Valley Traverse In Iowa North Of The Jones Point Deformation, G. E. Condra

Conservation and Survey Division

No abstract provided.


The Middle River Traverse Of Iowa, G. E. Condra, J. E. Upp Jan 1933

The Middle River Traverse Of Iowa, G. E. Condra, J. E. Upp

Conservation and Survey Division

No abstract provided.


The Red Oak-Stennett-Lewis Traverse Of Iowa, G. E. Condra Jan 1933

The Red Oak-Stennett-Lewis Traverse Of Iowa, G. E. Condra

Conservation and Survey Division

No abstract provided.


Faunal Lists Of The Tertiary Vertebrata Of Nebraska And Adjacent Areas, H. J. Cook, M. C. Cook Jan 1933

Faunal Lists Of The Tertiary Vertebrata Of Nebraska And Adjacent Areas, H. J. Cook, M. C. Cook

Conservation and Survey Division

No abstract provided.


Brachiopoda Of The Pennsylvanian System In Nebraska, C. O. Dunbar, G. E. Condra Jan 1932

Brachiopoda Of The Pennsylvanian System In Nebraska, C. O. Dunbar, G. E. Condra

Conservation and Survey Division

No abstract provided.


The Environment Of The Prairie, J. E. Weaver, W. J. Himmel Mar 1931

The Environment Of The Prairie, J. E. Weaver, W. J. Himmel

Conservation and Survey Division

No abstract provided.


Lincoln's Water Supply Problem Oct 1930

Lincoln's Water Supply Problem

Conservation and Survey Division

No abstract provided.


The Conservation Of Nebraska's Water Resources, G. E. Condra Oct 1930

The Conservation Of Nebraska's Water Resources, G. E. Condra

George E. Condra Publications

Oxygen is the first immediate necessity of life and water is second. Both directly and indirectly and more than soil, water is our most basic resource. It is the universal solvent and without it there would be no life, and, of course, no agriculture and industry.


Lincoln's Water Supply Problem Oct 1930

Lincoln's Water Supply Problem

Conservation and Survey Division

No abstract provided.


The Effect Of Soil Moisture On The Establishment Of Spruce Reproduction In British Columbia, Percy Munson Barr Jan 1930

The Effect Of Soil Moisture On The Establishment Of Spruce Reproduction In British Columbia, Percy Munson Barr

Yale School of the Environment Bulletin Series

Most of the field work has been conducted at the Aleza Lake Forest Experiment Station, in the valley of the Upper Fraser River, near the city of Prince George [British Columbia].

I. A series of twelve permanent plots (numbers 1 to 12) was established for the purpose of studying the occurrence of natural reproduction on various types of seed bed, under different densities of overwood and on northern and southern aspects. 2. A second series of four plots (numbers 17 to 20) was laid out in logged-off land for the purpose of studying the survival and growth of advance reproduction …


Handbook Of Nebraska Trees, A Guide To The Native And Most Important Introduced Species, Raymond J. Pool May 1929

Handbook Of Nebraska Trees, A Guide To The Native And Most Important Introduced Species, Raymond J. Pool

Conservation and Survey Division

No abstract provided.


Tree Planting And Landscape Beautification In Nebraska, Condra G. E. Mar 1929

Tree Planting And Landscape Beautification In Nebraska, Condra G. E.

George E. Condra Publications

This bulletin is intended to further the planting of flowers, vines, shrubbery, and trees in Nebraska.


Tree Planting And Landscape Beautification In Nebraska, G. E. Condra Mar 1929

Tree Planting And Landscape Beautification In Nebraska, G. E. Condra

Conservation and Survey Division

No abstract provided.


Colloidal Content And Related Soil Factors As Indicators Of Site Quality, Irvine T. Haig Jan 1929

Colloidal Content And Related Soil Factors As Indicators Of Site Quality, Irvine T. Haig

Yale School of the Environment Bulletin Series

This paper presents a study of the correlation between soil colloidal content and soil productiveness and hence a measure of the value of colloidal content in determining site quality. The character of this investigation also permitted incidental observation and comment on the relative value of organic matter, soil acidity, and soil type and class as similar measures. The findings are directly applicable to the forest soils of southern Connecticut and, more particularly, to such of these soils as occur commonly in the vicinity of New Haven. Since these soils are typical of the brown, weakly podsolized forest soils of southern …


Some Aspects Of Soil Moisture In The Forest, Ian J. Craib Jan 1929

Some Aspects Of Soil Moisture In The Forest, Ian J. Craib

Yale School of the Environment Bulletin Series

By determining the moisture content of carefully selected soil samples taken at various depths down to three feet, the moisture content of soils in the forest and in the open have been compared. The soils investigated were similar in their mechanical properties. Part I is an investigation of the effect of forest cover on the amount of water in the soil over the growing season and its availability. Part II is an investigation of the effect of root competition on the available water supply of forest soils.


Tree Planting In Nebraska Mar 1928

Tree Planting In Nebraska

Conservation and Survey Division

Introduction. This bulletin is planned to further the planting of trees and ornamental shrubbery in Nebraska. It is the result of cooperation between State, Federal, and University departments, and many State organizations.

The tree-planting campaign of this year (1928) is to begin early in the season and culminate in the American Forest Week (last week in April). It is a State and National movement, a welfare project worthy of the support of every citizen. The cooperation of all Nebraskans is invited.


Nebraska Beautiful, G. E. Condra Jan 1925

Nebraska Beautiful, G. E. Condra

Conservation and Survey Division

No abstract provided.


Nebraska Resources And Industries 1923 Jan 1923

Nebraska Resources And Industries 1923

Conservation and Survey Division

No abstract provided.


Agate Anticline, Sioux County, Nebraska, E. F. Schramm, H. J. Cook Jul 1921

Agate Anticline, Sioux County, Nebraska, E. F. Schramm, H. J. Cook

Conservation and Survey Division

No abstract provided.


Topographic Regions Of Nebraska, G. E. Condra Jan 1920

Topographic Regions Of Nebraska, G. E. Condra

Conservation and Survey Division

No abstract provided.


Nebraska's Resources And Industries 1920 Jan 1920

Nebraska's Resources And Industries 1920

Conservation and Survey Division

No abstract provided.


The Soil Resources Of Nebraska, G. E. Condra Jan 1920

The Soil Resources Of Nebraska, G. E. Condra

Conservation and Survey Division

No abstract provided.


Soils Of Nebraska As Road Materials-Naming, Routing, Marking Of Nebraska Highways, G. E. Condra Jan 1919

Soils Of Nebraska As Road Materials-Naming, Routing, Marking Of Nebraska Highways, G. E. Condra

Conservation and Survey Division

No abstract provided.


Road Materials Of Nebraska, Part 3, Soil And Subsoil, G. E. Condra Jan 1919

Road Materials Of Nebraska, Part 3, Soil And Subsoil, G. E. Condra

Conservation and Survey Division

No abstract provided.


Blue Sky Vs. Square Dealing In Land And Oil Business, G. E. Condra Jan 1919

Blue Sky Vs. Square Dealing In Land And Oil Business, G. E. Condra

Conservation and Survey Division

No abstract provided.


Nebraska's Game Resources And Their Conservation, Robert H. Wolcott, Frank H. Shoemaker Jan 1919

Nebraska's Game Resources And Their Conservation, Robert H. Wolcott, Frank H. Shoemaker

Conservation and Survey Division

No abstract provided.


Conservation Survey Of Nemaha County, Nebraska, G. E. Condra Jan 1918

Conservation Survey Of Nemaha County, Nebraska, G. E. Condra

Conservation and Survey Division

No abstract provided.


The Potash Industry Of Nebraska, George E. Condra Jan 1917

The Potash Industry Of Nebraska, George E. Condra

George E. Condra Publications

No abstract provided.