Physical Sciences and Mathematics Commons^™

Topographic Regions Of Nebraska, G. E. Condra

Conservation and Survey Division

No abstract provided.

Nebraska's Resources And Industries 1920

Conservation and Survey Division

No abstract provided.

The Soil Resources Of Nebraska, G. E. Condra

Conservation and Survey Division

No abstract provided.

Rules For Official Tractor Tests, Nebraska Tractor Test Lab, Agicultural Experiment Station

Nebraska Tractor Tests

The Nebraska Tractor Law known as House Roll 85, 37th session, which became effective July 15, 1919, was enacted to encourage the manufacture and sale of imporved types of tractors and to contribute to a more successful use of the tractor for farming.

It was thought that the best method of accomplishing these objects would be to require a tractor of each model sold in the State to be tested at the State University and to have the results of these tests made public. These tests will give reliable information on the power capacity and fuel consumtion of each tractor …

Classification Of Springs, Kirk Bryan

United States Geological Survey: Staff Publications

Among the common phenomena of nature, springs are notable because of their high usefulness. Since the earliest times the homes of men have clustered around them. In arid regions their number and size may limit the population. In many humid regions springs are so numerous and similar that distinctions between them are not recognized, yet they may be caused by so many principal and minor factors or by so many combinations of these factors as to make the origin of any one spring exceedingly complex or obscure. An interesting account of the many erroneous notions held by the ancients regarding …

Rules For Tractor Demonstrations, Nebraska Tractor Test Lab

Nebraska Tractor Tests

The object of these rules, instructions and data is to make all tractor demonstrations of this kind comparable and of the greatest educational value. Anyone who has conducted tractor demonstrations in the past has realized the necessity of some standard rules to follow and those who afterwards have referred to the results, deplore the lack of uniformity in the demonstrations and the data. For those who have not had this experience will find that it is a great help to have satisfactory rules to follow.

The value of these demonstrations depends largely upon the accuracy of the data reported on …

Father Of Test Law Explains It, Nebraska Tractor Test Lab

Nebraska Tractor Tests

Nebraska State Representative Wilmot F. Crozier of Osceola, Nebraska, who fathered and pushed the tractor bill through the Nebraska State Legislature. On September 19th, 1919, he tells why he formulated the law and his story to Implement & Trade Journal.

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

Conservation and Survey Division

No abstract provided.

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

Conservation and Survey Division

No abstract provided.

Studies Concerning The Elimination Of Experimental Error In Comparative Crop Tests, T. A. Kiesselbach

Nebraska Agricultural Experiment Station: Historical Research Bulletins

It is apparent that many sources of error have unconsciously entered into comparative crop yield tests. The very important matter of overcoming variation in soil conditions as a source of experimental error has been quite extensively studied and reported by various investigators during the past decade. The means suggested for reducing such error have been (1) repetition of plats and (2) correction of yields according to check plats planted to a uniform variety or treatment at stated intervals. Both methods have proved of value and a combination of both may often be used advantageously. Some danger always exists of error …

A Theorem On Semi-Continuous Functions, Henry Blumberg

Department of Mathematics: Faculty Publications

Recently G. C. Young and A. Denjoy have communicated theorems—those in Denjoy's memoir are of an especially comprehensive character—dealing, in particular, with point sets where the four derivatives of a given continuous function are identical. It is the purpose of this note to treat an analogous problem that arises when "derivative" is replaced by "saltus." However, instead of confining ourselves to "saltus," we prove a more general theorem that applies essentially to all semi-continuous functions. We preface the proof of this theorem with the following

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

Conservation and Survey Division

No abstract provided.

The Potash Industry Of Nebraska, George E. Condra

George E. Condra Publications

No abstract provided.

A Short Story As Regards The Drainage Of Salt Creek, G. E. Condra

Conservation and Survey Division

No abstract provided.

Preliminary Report On The Clay Industry Of Nebraska, E. H. Barbour

Conservation and Survey Division

No abstract provided.

The Conservation Of Foods

Conservation and Survey Division

No abstract provided.

Preliminary Report On The Clay Industry Of Nebraska, Erwin Hinckley Barbour

Conservation and Survey Division

No abstract provided.

Drainage Districts Of Southeastern Nebraska, Calvin Turner Moore

Conservation and Survey Division

Throughout certain parts of the United States the importance of drainage is receiving increased recognition each year. The scope of investigations and operations covers many localities that are affected with "springy" lands, swamps, shallow lakes, overflowed lands, and tide lands.

Operator's Instruction Manual: Case Va, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

The Natural Fuels Of Nebraska, Erwin H. Barbour

Conservation and Survey Division

No abstract provided.

A Preliminary Report Of The Alkali Resources Of Nebraska, E. H. Barbour

Conservation and Survey Division

No abstract provided.

Some Plant Cuticles From The Graneros Shale, A. C. Whitford

Conservation and Survey Division

No abstract provided.

A Description Of Two New Fossil Fungi, A. C. Whitford

Conservation and Survey Division

No abstract provided.

Road Problems In Nebraska, G. E. Condra

Conservation and Survey Division

No abstract provided.

A Preliminary Report Of The Alkali Resources Of Nebraska, Nebraska Geological Survey

Conservation and Survey Division

No abstract provided.

Nebraska Pumicite, E. H. Barbour

Conservation and Survey Division

No abstract provided.

A Giant Nebraska Bear "Dinarchtotherium Merriama", E. H. Barbour

Conservation and Survey Division

No abstract provided.

The Round Ligament Of Nebraska Proboscideans, Erwin H. Barbour

Conservation and Survey Division

Comparisons of the acetabula of various mastodons and mammoths common to Nebraska show conclusively that absence of the round ligament is not a characteristic of the proboscidea, as generally accepted. From the specimens in our collections, there is evidence that the ligament was not on! y present, but was uncommonly large and well developed in the earlier Nebraska proboscideans. Examination of material collected since 1891, and preserved in the cabinets of the Nebraska State Museum. and the Morrill Geological Collections, makes it apparent that all Nebraska proboscideans had round ligaments, though perhaps the latest survivors did not.