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The Plight Of The Biologist: Editorial

Science Bulletin

This is indeed an age of science! For the past three hundred years, man has wooed the Goddess of Nature and so ardent has been his wooing, like Sampson of old, she has finally told him her secrets of power.

The Story Of Steve, And Others, Roy L. Abbott

Science Bulletin

Steve was a Leopard frog. I say "was" because he long since vanished into the maw of a snapping turtle, and would straightway have been transformed into a part of that twenty-pound bundle of ferocity, had not said turtle been thrown into a furnace by an irate janitor who was fond of Steve but disliked the snapper. Hence, the end of Steve was the occasion for this story of frogs in general and Steve in particular.

Forty-Fifth Annual Meeting Of The Iowa Academy Of Science, May 1 And 2, 1931, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Title Page

Science Bulletin

A Service Bulletin for Teachers of High School Science.

The State High School Course In General Science, C. W. Lantz

Science Bulletin

The course of study in general science for high schools issued by the State Department of Public Instruction has recently come from the press. The course is divided into fifteen units. Of these, eight are devoted primarily to physical and chemical facts; five are of a biological nature; and two deal with facts of astronomy and meteorology. The authors, however, have succeeded well in constructing a course in general science and have not merely put together unrelated parts of physics, chemistry, biology, and astronomy.

Science Bulletin, Vol.3 No.8, April 1931 [Complete Issue]

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Cell Secrets, R. W. Getchell

Science Bulletin

This is a true picture of one class of cell products, the enzymes; and it represents with considerable accuracy two other products of the cell, the vitamines and the hormones. These three wonderful agencies challenge our interest and provoke a tremendous amount of research at present because they are so far-reaching in their effects and because they hugely baffle any attempt to isolate or identify them.

Weather Lore, E. J. Cable

Science Bulletin

Are you one of the great throng that believe in superstition? Do you look with gloom and dismay upon future weather if, on ground-hog clay, this harmless animal should be so unfortunate as to see his noon day shadow and then hie himself to mother earth for another six weeks I period? Do you think it makes any difference if you plant y our garden seeds in the light of the moon or lay shingles in the dark of the moon!

Effects Of An Electric Current, L. Begeman

Science Bulletin

In two preceding articles, the writer has discussed the nature of an electric current and the three practical ways of producing it. The question now naturally follows: What are the uses of an electric current? Speaking generally, we use an electric current for lighting, for heating, for chemical work, for mechanical work, and for therapeutic or physiological treatments of various human ailments.

My Friend, The Toad, Roy L. Abbott

Science Bulletin

As a boy, I played with a big shepherd dog that had a passionate fondness for toads. He cornered one nearly every day, some place or another, always apprizing me of the fact by loud barking and frantic gesticulations as if he had really found some game worthwhile this time.

Science Bulletin, Vol.3 No.7, March 1931 [Complete Issue]

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Soap, O. B. Read

Science Bulletin

Soap has been a common and important household article since ancient times. Until within the last fifty years its preparation was largely a home or domestic process, but recently its manufacture has been shifted from home to factory, and soap has become an important industrial product.

Science Bulletin, Vol.3 No.6, February 1931 [Complete Issue]

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Makers Of Science, S. F. Hersey

Science Bulletin

In the November number of the Science Bulletin the suggestion was made with reference to science clubs that "Human interest biographies of noted scientists'' would be interesting and helpful. This idea has appealed to the writer as a sound one and has inspired the writing of the present article.

Human Physiology, H. Earl Rath

Science Bulletin

As a small boy I recall sitting near the front of the room in a rural school with my legs swinging vigorously several inches from the floor, and listening while a large group of older boys and girls attempted to recite the names of the bones of the body as well as many other parts. The class appealed to me principally because it seemed to give great pain to the participants, and because it was still a long way off so far as I was concerned. With much less glee do I recall the time a few years later when …

Prospecting In Browning, Hazel J. Robinson

Purple Pen

No abstract provided.

Plant Disease Control, C. W. Lantz

Science Bulletin

In the November issue of the Bulletin some idea of the crop losses due to plant diseases was given. Obviously the farmer should be concerned in preventing these losses if he is to profit most from his labor. The control of plant disease lies in prevention rather than cure. In most cases, the individual plant is not of sufficient value to warrant an attempt to cure it. The exceptions would be in those cases where a valuable individual plant such as a shade tree becomes diseased and it would be desirable to save it.

Science Bulletin, Vol.3 No.5, January 1931 [Complete Issue]

Science Bulletin

A Service Bulletin for Teachers of High School Science.

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.

Nitrogen Trichloride And Grignard Reagents, George H. Coleman, Marion A. Buchanan

Proceedings of the Iowa Academy of Science

Nitrogen trichloride reacts with Grignard reagents to produce primary amines, ammonia, and a small amount of secondary amines. No tertiary amine was isolated. The percentage yield of these products obtained in a typical reaction with n-butyl magnesium chloride were as follows: n-butyl amine 35%, ammonia 15%, and di-n-butyl amine 3%.

The Composition Of The Unsaturated Fatty Acids Of Animal Tissues, H. G. Smith

Proceedings of the Iowa Academy of Science

Very little information is available as to the composition of the unsaturated fatty acids of animal tissues, especially as regards the location of the double bonds. This is a report of preliminary experiments on the fatty acids of beef heart muscle and liver. The unsaturated acids were separated by two methods, crystallization of the bromine derivatives and fractional distillation of the methyl esters. The method of Armstrong and Hilditch was used for the oxidation of the unsaturated acids and the results obtained up to this time indicate that the first double bond nearest the carboxyl group is in the 9:10 …

Measurement Of Mean Life Of Cadmium 2^3p1 By Thermal Motion Of Excited Atoms During Life Time, H. D. Koenig

Proceedings of the Iowa Academy of Science

Since the experiments of Dunoyer in 1914 some interest has developed in an experiment to show the diffusion of excited atoms in various types of resonance lamps. None of these have been successful due to the short life time of the excited states in the vapors selected. Since experiments made in this laboratory indicate a long life for the Cadmium 2³P₁ state, an attempt was made to measure the life of this state by the motion of the excited atoms in a unidirectional beam shot from a gun of the boiler type, and excited by passing through …

The Spectrum Of Mercury Excited By Canal-Ray Impact, Carl Frische

Proceedings of the Iowa Academy of Science

The spectrum of mercury is excited by hydrogen canal rays. The velocity of the canal rays is regulated by the voltage applied to a discharge tube and the canal-ray particles are allowed to shoot through a small hole in the cathode. Spectrograms were taken at voltages ranging from 1000 to 12,000 volts and the general characteristics of the spectra were studied. The spectra thus excited had very much the same characteristics as the electron spectrum just below ionization with the exception that several spark lines appeared at the lower voltages. The spark lines became more prominent as the voltage was …

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 ... …

The Story Of Iowa, Thomas P. Christensen

Iowa Book Gallery

A history of the state of Iowa up through the 1920s, written especially for children.

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.

Collecting Contests As A Means Of Increasing Student Interest In Biological Subjects, H. E. Jaques

Proceedings of the Iowa Academy of Science

For some twenty years the author has been organizing contests among his students in Botany, Zoology, Bird Study, Tree Study and Entomology as a means of encouraging a greater interest in field work with better observation and more intelligent understanding. Some of the schemes employed may at first glance seem childish. That the plan gets results is attested by the working knowledge of plants and animals acquired by these students and what they have been able to do with this knowledge as teachers, research workers and in other fields since leaving college.

Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

Studies In The Selection For Susceptibility And Resistance To Anaphylactic Shock In Guinea Pigs, E. W. Shrigley

Proceedings of the Iowa Academy of Science

In 1927 the foundation stock for this experiment was picked at random from the guinea pig colony of the Genetics Department at Iowa State College. Since then three generations of individuals, selected both for resistance and susceptibility to protein reaction, have been obtained.