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In Memoriam: Fred C. Werkenthin; Chalmers Colin Norwood, John N. Martin, Ben Hur Wilson

Proceedings of the Iowa Academy of Science

No abstract provided.

Proceedings Of The Thirty-Sixth Annual Session Of The Iowa Academy Of Science, Drake University, Des Moines, April 28 And 29, 1922: Minutes Of The Meeting; Staff & Committee Reports

Proceedings of the Iowa Academy of Science

No abstract provided.

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

Proceedings of the Iowa Academy of Science

No abstract provided.

Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

The Alumni News Letter, V5n3, July 1, 1921, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

1921 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.

The Alumni News Letter, V5n1, January 1, 1921, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

College Catalog And Circular 1921, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents

Calendar for 1921-1922 ... 5
Officers of Administration and Instruction ... 6
General Information ... 32
Residence, Student Health, Assembly ... 35
Expenses and Fees ... 36
Free Scholarships ... 38
Extension Service ... 38
College Organizations ... 39
Faculty Organizations ... 39
Training in Actual Teaching ... 40
Public Lectures and Entertainments ... 40
Boarding and Lodging ... 40
Employment of Students ... 42
Twelve Weeks Normal Training ... 42
School Credits in Lieu of Certificate Examinations ... 42
Examinations for Teachers Certificates ... 42
Department Certificates ... 42
Bureau of Recommendations ... 42
Degree Curriculums …

Measurements Of The Amplitude Of Vibration Of The Diaphragm Of The Hewlett Tone Generator, C. E. Lane

Proceedings of the Iowa Academy of Science

The "New Tone Generator" designed by Dr. C. W. Hewlett promises to be a very valuable instrument for use as a precision source of sound. The operation of the instrument has been investigated mathematically by its designer and a method is given for calculating the amplitude of vibration of its diaphragm from the electrical input. The writer herein describes a method whereby it has been possible to make actual measurements of the amplitude by mechanical means for comparison with the calculated amplitudes. The tone generator was used in a vacuum tube oscillatory circuit from which the desired frequencies of alternating …

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

Proceedings of the Iowa Academy of Science

No abstract provided.

In Memoriam: E. W. Stanton, L. H. Pammel

Proceedings of the Iowa Academy of Science

No abstract provided.

The Alumni News Letter, V4n4, October 1, 1920, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

The Alumni News Letter, V4n3, July 1, 1920, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

College Catalog And Circular 1920, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents

Calendar for 1920-1921 ... 3
Officers of Administration and Instruction ... 4
General Information ... 30
Residence, Student Health, Assembly ... 34
Expenses and Fees ... 35
Free Scholarships ... 37
Extension Service ... 37
Acceptance of Credits from Other Institutions ... 37
College Organizations ... 38
Faculty Organizations ... 39
Training in Actual Teaching ... 39
Public Lectures and Entertainments ... 39
Boarding and Lodging ... 40
Employment of Students ... 41
Twelve Weeks Normal Training ... 41
School Credits in Lieu of Certificate Examinations ... 41
Examinations for Teachers Certificates ... 42
Department Certificates ... …

The Alumni News Letter, V4n2, April 1, 1920, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

The Alumni News Letter, V3n2 [V4n1], January 1, 1920, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

1920 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.

The Alumni News Letter, V3n3, July 1, 1919, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

Iowa State Teachers College Program Of Recitations, Summer 1919, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.

College Catalog And Circular 1919, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents

Calendar for 1919-1920 ... 5
Officers of Administration ... 6
Officers of Instruction ... 9
General Information ... 36
Residence, Student Health, Assembly ... 40
Expenses and Fees ... 40
Free Scholarships ... 42
Extension Service ... 42
Acceptance of Credits from Other Institutions ... 43
College Organizations ... 43
Training in Actual Teaching ... 44
Public Lectures and Entertainments ... 45
Boarding and Lodging ... 45
Employment of Students ... 46
Normal Training ... 46
School Credits in Lieu of Certificate Examinations ... 46
Examinations for Teachers Certificates ... 47
Department Certificates ... 47
Bureau of …

Iowa State Teachers College Program Of Recitations, Spring 1919, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.

Iowa State Teachers College Program Of Recitations, Winter 1918-19, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.

1919 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.

The Relation Between Voltage And Candle-Power In Modern Incandescent Lamps, William Kunerth

Proceedings of the Iowa Academy of Science

Among the operating characteristics of incandescent lamps, there are certain features which are often overlooked by the man using or dealing with lamps. The voltage is one of the chief factors upon which the behavior of a lamp depends. It is well known that under an excessive voltage, a lamp will not last long, but will last much longer than its normal life if the voltage is below normal. Mathematical formulae have been deduced from experimental results to cover this relation.

Superposed Stroboscopic Velocities, L. E. Dodd

Proceedings of the Iowa Academy of Science

The curves plotted from the stroboscopic velocity equation, ¹ v.= (A— n/m.B)D₀, (1) and from the derived form, ² f=mN— nB, (2) show that from a given frequency of the stroboscopic figures there is an unlimited number of illumination frequencies that will give the stationary stroboscopic condition, and conversely, for a given value of the illumination frequency there is an unlimited number of frequencies of the stroboscopic figures that will make v₃ equal to zero.

The Alumni News Letter, V2n3, July 1, 1918, Iowa State Teachers College

The Alumni News Letter

Contains news of the College and its alumni.

College Catalog And Circular 1918, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents:

Calendar for 1918-1919 ... 6
Officers of Administration ... 6
Officers of Instruction ... 8
Plan of Organization ... 35
General Regulations ... 35
Faculty Regulations ... 38
Order and Deportment ... 38
Credits and Scheduling ... 38
Schedules, Credits, and Absences ... 39
Dismissals, Re-enrollments, and Unsatisfactory Work ... 39
Extension Service ... 39
Exchange of Students ... 40
Expenses and Fees ... 40
College Organizations ... 42
Training in Actual Teaching ... 43
Boarding and Lodging ... 44
Employment of Students ... 46
Admission Requirements ... 48
Definitions of College Terminology ... 49
Degrees, Diplomas, …

Iowa State Teachers College Program Of Recitations, Spring 1918, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.