Digital Commons Network^™

Title Page

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Question Box, W. H. Kadesch, O. R. Clark, Winfield Scott

Science Bulletin

Question: Wood is opaque to light but is easily penetrated by X rays. The latter, however, are stopped by some kinds of clear glass. Does this not show that light and X rays are of different nature?

Is it desirable to study the theory of evolution in connection with a high school course in Botany? If so, to what extent?

What is the purpose of crop rotation?

On Meeting With A Fox, Roy L. Abbott

Science Bulletin

It is rarely that one sees a wild animal at its best. As a hunter, I have shot many beautiful birds and small mammals, but on retrieving them, in spite of my elation at their capture, I have always had the haunting feeling that the dead thing in my hand was not the creature at which I had aimed. As an anatomist, I have dissected scores of animals, but always do I realize that the stiff, cold thing under my scalpel is not quite the thing it was when alive.

Proceedings Of The Forty-Fifth Annual Meeting Of The Iowa Academy Of Science, Held At Davenport, May 1 And 2, 1931: Minutes Of The Meeting; Staff & Committee Reports

Proceedings of the Iowa Academy of Science

No abstract provided.

A Study Of The Mathematical Disabilities Of Students Pursuing First Year College Physics, W. R. Lueck

Proceedings of the Iowa Academy of Science

This study is in progress at the present time and hence the report is concerned only with such aspects as have been completed. The Compass Survey Test in Arithmetic (Advanced Examination) and the Douglass Diagnostic Test in Elementary Algebra were given to 282 students pursuing freshman physics in five colleges. The disabilities indicated by these tests were classified and tabulated. In addition to the above, the daily, weekly, and other tests given by the instructors in these colleges to the students concerned were obtained and the disabilities indicated thereon were classified and tabulated. Each student also solved a selected list …

The Alumnus, V15n1, January 1931, Iowa State Teachers College

The Alumnus

Inside This Issue:
-- School Bell Calls Alumni To Annual Dinner
-- Iowa's First "Superior School" Teachers Honored At Annual College Dinner as Former Students
-- Sixty-One Enter Ranks Of Alumni At Fall Term
-- Faculty String Quartet Draws High Praise
-- Debaters Meet Foreign School For First Time
-- Fourteenth Conference Attracts Alumni
-- Fall Play Is Seventeen Scene Extravaganza
-- Grand Scale Benefit for Memorial Theatre
-- Iowa Teachers, Their Problems and Opportunities
-- News Items of the College
-- Cagers Open Season With Decisive Victory
-- The Varsity Football Squad of 1930
-- Stiff Schedule Seasons Gridders …

College Catalogue 1930-1931, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents

Calendar for 1931-32 ... 5
Officers of Administration and Instruction ... 6
Faculty ... 7
General Information ... 25
Historical Sketch ... 25
Buildings and Grounds ... 25
Enrollment ... 28
Expenses ... 28
Employment of Students ... 30
Loans ... 30
Student Organizations and Activities ... 31
The Lecture Course ... 32
The Placement Bureau ... 32
Entrance Requirements ... 33
Admission with Advanced Standing ... 34
Advisers and Amount of Work ... 35
Absences and the Making up of Work ... 35
General Requirements for Graduation ... 36
County Certificates ... 37
State Certificates ... …

1931 Old Gold, Iowa State Teachers College

UNI Yearbooks

The student yearbook of the Iowa State Teachers College, later known as the University of Northern Iowa.

Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

Index

Proceedings of the Iowa Academy of Science

No abstract provided.

Radio And The Outer Atmosphere

Science Bulletin

In investigating the possibilities of short-wave radio the surprising fact was discovered that although short waves may often be clearly received at distances of thousands of miles from stations with very little power, it is difficult or impossible to detect them at nearby points, 30 to 300 miles away. This can be understood if the upper atmosphere acts like a reflector.

About Atmospheric Electricity, L. Begeman

Science Bulletin

Our atmosphere is electrified at all times. During the summer the average increase of potential from the earth's surface up is about 100 volts for one meter of ascent. This potential gradient, however, diminishes with increasing altitude until at the height of one mile it is only 25 volts per meter. During the winter the atmosphere is much more in tensely electrified. The average increase of electrical potential near the earth 's surface during this season is as much as 250 volts per meter of ascent.

Resistivity Of Zinc Crystals, E. P. T. Tyndall, A. G. Hoyem

Proceedings of the Iowa Academy of Science

The resistivity at 20°C of zinc crystals made of Kahlbaum's purest and of "Spectroscopically Pure" zinc (from New. Jersey Zinc Company) is given as a function of direction of current flow relative to the orientation of the crystal lattice. For the Kahlbaum crystals the results are very much more consistent than have previously been obtained and point to a higher ratio of p11/p1 than that obtained by Bridgman. The "Spectroscopically Pure" crystals agree in the main with the Kahlbaum, but there are a few exceptional cases which tend to confirm Bridgman's strain theory. It seems more probable, however, that an …

The Use Of The Individual Parts Of The Aptitude Test For Predicting Success Of Students, Gertrude M. Cox

Proceedings of the Iowa Academy of Science

The Iowa State College Aptitude Test is composed of seven parts or sub-tests. These sub-tests have been used in predicting the success of the students during their first quarter in college.

Officers, Past Presidents, And Members, Iowa Academy Of Science

Proceedings of the Iowa Academy of Science

No abstract provided.

Science Bulletin, Vol.3 No.4, December 1930 [Complete Issue]

Science Bulletin

A Service Bulletin for Teachers of High School Science.

The Nature Of Adaptations, O. R. Clark

Science Bulletin

In the October number of this bulletin, in a discussion of the influence of environment upon the growth and development of plants, the statement was made that, on the whole, plants are quite well adapted to the conditions under which they grow. As to the manner by which this ''fitness” has arisen there are some differences of opinion and, in the opinion of the writer, a great many misunderstandings. This is a question to which no ''cut-and-dried'' answer can be given but to which a fundamental principle of biology may be applied.

Nobel Prizes For 1930

Science Bulletin

The Nobel prizes in science, each amounting to nearly $50,000, have recently been awarded, as follows.

Editor And Advisory Board

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Fossils Of Three Toed Horse In Wyoming

Science Bulletin

An expedition of the Harvard University Museum of Comparative Zoology, under the leadership of Erich M. Schlaikjer, has recently discovered near Torrington, Wyoming, an enormous fossil deposit in which were found thousands of little three toed horses that lived about 35,000,000 years ago.

Farming In India, Winfield Scott

Science Bulletin

The following extract from an article written by Saint Mhal Singh of India (See Wallace's Farmer, April 30, 1909) is given as a description of farmers in that populous country. The Hindoos are the Eastern Branch of our own Aryan race.

Question Box, E. J. Cable

Science Bulletin

Which hypothesis for the origin of the earth is in best repute?

Can ice become colder than zero degrees centigrade? If not, why?

Will the lack of uniformity in the bore of a mercurial barometer tube affect its reading except for the temperature correction?

Dinosaur Eggs Discovered In Montana

Science Bulletin

Dr. Glenn L. Jepson, of Princeton University, director of an expedition into southern Montana, has reported the discovery of dinosaur eggs in that region.

Experiments In Static Electricity

Science Bulletin

Rub a clean dry glass flask vigorously all over with a piece of silk, and roll it about in a pile of very course cork dust or a quantity of crumbled bits of dry corn stalk pith. When the flask is lifted it will be covered with dust or pith, the particles of which it will proceed to fire off in different directions, some to considerable distance.

What Kind Of Weather For Tomorrow, E. J. Cable

Science Bulletin

One of the most common topics of conversation when friends or strangers meet is "what a fine day," or "what terrible weather.'' No natural phenomena have a more pronounced psychological influence upon man than weather phenomena.

More About Static Electricity, L. Begeman

Science Bulletin

What is the most important property of a charge of electricity?

Title Page

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Cosmic Rays As Barometers

Science Bulletin

Prof. R. A. Millikan, discoverer of the Cosmic rays, has recently reported to the National Academy of Science a practical use for those rays. These are the most penetrating radiations known, far exceeding X rays and even the very penetrating gamma rays of radium in that respect.

Fall Term Commencement [Program], November 25, 1930, Iowa State Teachers College

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

Science Bulletin, Vol.3 No.3, November 1930 [Complete Issue]

Science Bulletin

A Service Bulletin for Teachers of High School Science.