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Science Bulletin, Vol.1 No.2, December 1928 [Complete Issue]
Science Bulletin, Vol.1 No.2, December 1928 [Complete Issue]
Science Bulletin
A Service Bulletin for Teachers of High School Science.
A Correspondent Reminds Us . . .
A Correspondent Reminds Us . . .
Science Bulletin
A correspondent reminds us that some teachers of science leave the impression in the class that our present knowledge of science was given to the world ready made or grew out of the presses that printed the text.
Laboratory Equipment And Experiments For Determinations Of Density, L. Begeman
Laboratory Equipment And Experiments For Determinations Of Density, L. Begeman
Science Bulletin
Laboratory experiments in Density require the following apparatus: beam balances, meter sticks, graduates, calipers, tumblers, test tubes, and hydrometers. There should be as many of each as possible· in order to reduce the amount of group work. The objects for study should include pieces of lead, zinc, marble, paraffin, beeswax, glass stoppers, shot, gasoline and solutions of salts such as blue vitriol.
Something From Nothing, W. H. Kadesch
Something From Nothing, W. H. Kadesch
Science Bulletin
Matter made while you wait-hydrogen, helium, oxygen, iron or what will you have? No, it has not quite come to this! But the time-honored law of conservation which states that matter is neither destructible nor creatable is no longer accepted as unquestionably and universally true.
Fall And Winter Material In Animal Husbandry, H. Earl Rath
Fall And Winter Material In Animal Husbandry, H. Earl Rath
Science Bulletin
Swine are now going to market in large numbers. This offers an excellent opportunity to study market types as represented in the herd and compare them with the sows from which they were produced. If brood sows for spring litters have not all been selected, the teacher has some valuable work for pupils in selecting the better prospects from the available groups.
Some Suggestions For Winter Study Of Biology In High Schools, Roy L. Abbott
Some Suggestions For Winter Study Of Biology In High Schools, Roy L. Abbott
Science Bulletin
Considerable criticism has recently been directed against the commonly accepted methods of teaching Biology in our secondary school and colleges. John Burroughs once re- marked that he had never dissected an animal and was glad of it, implying by this, I take it, that we do not learn Nature by dissecting her children. Recently Wheeler of Harvard, has voiced a similar criticism by saying that our teaching of Biology is suffering from academic dry rot; that laboratory dissection of a dead animal gives the student a knowledge of the details of structure of that animal without giving any knowledge of, …
Science Bulletin, Vol.1 No.1, November 1928 [Complete Issue]
Science Bulletin, Vol.1 No.1, November 1928 [Complete Issue]
Science Bulletin
A Service Bulletin for Teachers of High School Science.
The Scientific Method, L. Begeman
The Scientific Method, L. Begeman
Science Bulletin
What is a perfect recitation? In the fifteenth chapter, page 201 of Dewey's "How We Think" will be found a statement of Herbart's formal steps of instruction. They have been designated as the five perfect steps of a recitation. As Dewey says, "These five steps have had greater and better influence on the 'hearing of lessons' than all other methods put together." Dewey further states "that the underlying notion of these steps is that no matter h ow subjects vary in scope and detail there is one and only one 'best' way of mastering them since there is a 'single …
Some Suggestions For Fall Laboratory Work In Animal Husbandry, H. Earl Rath
Some Suggestions For Fall Laboratory Work In Animal Husbandry, H. Earl Rath
Science Bulletin
Now that the seed corn is selected for next spring, and the frost has put an end to grasses and other outdoor crops, the agricultural instructor often feels that little outdoor material is available for further study. With this in mind I would like to present a laboratory exercise that will provide for some valuable outdoor work, and can be used as the basis for much classroom study as well.
Organize That Club!
Science Bulletin
Now is the time to organize your Science Club. The cold months are club months. With the closing of the out-door athletic sports the pupils naturally turn to inside activities as outlets for their energies.
The Alumni News Letter, V12n3, July 1, 1928, Iowa State Teachers College
The Alumni News Letter, V12n3, July 1, 1928, Iowa State Teachers College
The Alumni News Letter
Contains news of the College and its alumni.
Observations On A Hen Possessing Some Structural Doubling And Limited Cock Characters, R. G. Schott, V. Curtis
Observations On A Hen Possessing Some Structural Doubling And Limited Cock Characters, R. G. Schott, V. Curtis
Proceedings of the Iowa Academy of Science
Cases of adult hens showing cock characters have been studied extensively, but doubling of structure is seldom found beyond the embryonic stages. This case of a White Leghorn hen is of interest not only in that she carried some cock characters while laying normal eggs, but also in that she possessed some marked anomalies that are indicative of irregular embryonic development. The Poultry Husbandry department, Iowa State College, gave this particular hen to the Genetics department in the spring of 1927. She had been sent to the college by an Iowa farmer some time previously. From Nov. 20, 1927, to …
Oxygen Consumption At 20° In Certain Snakes Pituophis Sayi And Lampropeltis Getulus Holbrooki With Some Notes On Size And Seasonal Difference, Francis M. Baldwin
Oxygen Consumption At 20° In Certain Snakes Pituophis Sayi And Lampropeltis Getulus Holbrooki With Some Notes On Size And Seasonal Difference, Francis M. Baldwin
Proceedings of the Iowa Academy of Science
Before this section of the Academy last year data were presented on the rate of oxygen consumption in certain turtles, which were interpreted to represent both "basal" and "active" rates in these forms. Data on these points were thought to be of some value in connection with the question as to whether a beginning or a remnant of a heat-regulatory mechanism might not be found in this representative of the reptilian group. While it is the hope of the writer to continue the investigations with the turtles, it so happened that specimens of the snakes in Professor Guthrie's collection were …
Teaching Of Biology In Junior Colleges And High Schools, L. H. Pammel
Teaching Of Biology In Junior Colleges And High Schools, L. H. Pammel
Proceedings of the Iowa Academy of Science
Not very long ago I was in the city of Decatur, Illinois, where I made a little talk on the subject of conservation to the students in botany. I asked the instructor in charge of the work in the high school about the teaching of biology and he promptly said, "We have not changed our plan of teaching Botany in the high school. We are following the old method of giving a strong course in botany and one in zoology, and we believe that these courses fit the needs of our students better than general courses in biology or in …
How Shall We Treat Our State Parks?, B. Shimek
How Shall We Treat Our State Parks?, B. Shimek
Proceedings of the Iowa Academy of Science
The law creating state parks in Iowa specifically provides for the preservation of areas of historic or scientific interest, or possessing scenic beauty, and not alone for recreation purposes. It was never contemplated or expected that any one of the state parks would meet all of the requirements indicated, but that each purpose would be served by some, or parts of some of the areas selected. There is a growing tendency to regard both our national and state parks as mere recreation or picnic grounds, and their value is being measured in many quarters merely by the numbers of visitors.
In Memoriam: J. H. Paarmann; Bruce Fink; Melvin P. Somes; Addie Grace Wardle; Clifford H. Farr, L. H. Pammel, A. O. Thomas, Nicholas Knight, Robert B. Wylie
In Memoriam: J. H. Paarmann; Bruce Fink; Melvin P. Somes; Addie Grace Wardle; Clifford H. Farr, L. H. Pammel, A. O. Thomas, Nicholas Knight, Robert B. Wylie
Proceedings of the Iowa Academy of Science
No abstract provided.
Temperature And Catalase Activity In Germinating Corn, C. W. Lantz
Temperature And Catalase Activity In Germinating Corn, C. W. Lantz
Proceedings of the Iowa Academy of Science
Catalase is an enzyme almost universally present in living cells and has the power of breaking hydrogen peroxide into water and molecular oxygen. The various theories as to the significance of catalase in metabolism are conflicting. Catalase has been considered by some as an enzyme directly correlated with respiration, others have failed to find such a correlation.
Copper Salts In Nutrition, John M. Evvard, V. E. Nelson, W. E. Sewell
Copper Salts In Nutrition, John M. Evvard, V. E. Nelson, W. E. Sewell
Proceedings of the Iowa Academy of Science
A great deal of work has been done on the distribution of copper in plant and animal matter. It is not the intention of the authors to critically review all of the work of a biological nature concerning this element but only such as applies to the problem at hand. Investigations concerning the presence and role of copper in marine life are numerous. Harless found this metal in combination with protein in the blood of Eledone and Helix Pomatia and concluded that it functioned in a manner similar to that of hemoglobin of higher animals. Fredericq also said that copper …
Fish Collected In The Vicinity Of Vinton, Iowa, David T. Jones
Fish Collected In The Vicinity Of Vinton, Iowa, David T. Jones
Proceedings of the Iowa Academy of Science
It is hoped that this article may be but a start toward supplying definite records on what fish exist today in our Iowa streams. Our old records for the state are good, but we need recent records on which to base our ecological studies and to establish a sound program of conservation. Some neighboring states have been very active in ichthyological surveys, which have to a great extent made such work here seem less urgent. Neither the excellency of work done thirty-five or forty years ago nor the completeness of work done recently near our borders affords us an excuse …
Iowa State Teachers College Program Of Recitations, Fall 1927, Iowa State Teachers College
Iowa State Teachers College Program Of Recitations, Fall 1927, 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.
Forty-First Annual Meeting Of The Iowa Academy Of Science, May 6 And 7, 1927, Iowa Academy Of Science
Forty-First Annual Meeting Of The Iowa Academy Of Science, May 6 And 7, 1927, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
In Memoriam: Charles Nutting; Leroy Titus Weeks; Edna M. Carter, L. H. Pammel, Guy West Wilson
In Memoriam: Charles Nutting; Leroy Titus Weeks; Edna M. Carter, L. H. Pammel, Guy West Wilson
Proceedings of the Iowa Academy of Science
No abstract provided.
Specific Infectious Pyelonephritis Of Cows, C. D. Rice
Specific Infectious Pyelonephritis Of Cows, C. D. Rice
Proceedings of the Iowa Academy of Science
In the last three years, five cases of pyelonephritis in the cow have been attended by the clinic staff. Several cases were reported from Humboldt County. This disease is reported as being quite common in European countries. The writer has had the opportunity to make bacteriological examination in two of the above mentioned cases and one case in the pig.
An Objective Approach To The Study Of Certain Emotions, Emily Patterson
An Objective Approach To The Study Of Certain Emotions, Emily Patterson
Proceedings of the Iowa Academy of Science
Last year a qualitative and quantitative study of the emotions was made, emphasizing those of fear and startle. On theoretical grounds the emotion which seemed naturally to follow these was surprise, for often the emotion of surprise was closely allied in the introspective reports and in the technical procedure of arousing the several emotions. In the literature little is said about surprise. Almost always it is described as a comparatively mild emotion. Watson does not mention it among his primary emotions and few other authors consider it among the important emotions. In popular literature, however, the word is frequently found …
Some Protozoa Found In The Faeces Of Cattle, Elery R. Becker, W. W. Frye
Some Protozoa Found In The Faeces Of Cattle, Elery R. Becker, W. W. Frye
Proceedings of the Iowa Academy of Science
A microscopic investigation of the faeces of cattle was undertaken in search of possible cyst forms of the numerous species of ciliates which inhabit the rumen and reticulum of these animals. Of the various workers who have searched for the cysts of these protozoa only one, Liebetanz (1910), reports success. His technique, however, was so open to adverse criticism, and his figures so unconvincing, that it is doubtful if even he really saw cystic forms.
The Field Of Protozoology In The Agricultural College, Elery R. Becker
The Field Of Protozoology In The Agricultural College, Elery R. Becker
Proceedings of the Iowa Academy of Science
There are many reasons why colleges of agriculture should offer an unusually fertile field for scientific exploitation by the protozoologist. It seems to me that the situation is a reciprocal one. In the first place, the agricultural college and the field it serves stand to benefit by any contributions made toward a solution of the many problems relating to agriculture in which the protozoa play a greater or less part. Secondly, the protozoologist will find in the numerous branches of agriculture not only a wealth of possibilities for valuable and interesting research, but also every promise of obtaining positive results, …
Notes On The Occurrence Of Oolitic Limestone In The Otis Beds Of The Devonian, Kenwood, Iowa, Glenn S. Dille
Notes On The Occurrence Of Oolitic Limestone In The Otis Beds Of The Devonian, Kenwood, Iowa, Glenn S. Dille
Proceedings of the Iowa Academy of Science
A very prominent outcrop of the Otis limestone occurs along the valley of Indian creek at a point known as Horse Thief Cave, about one-half mile south of the town of Kenwood, Iowa. At this place the exposed beds contain the characteristic Spirifer subumbonus Hall.
Histopathology Of The Thyroid Of The Guinea Pig In Experimental Scurvy, Katherine R. Day
Histopathology Of The Thyroid Of The Guinea Pig In Experimental Scurvy, Katherine R. Day
Proceedings of the Iowa Academy of Science
Chronic scurvy was induced in guinea pigs by a diet of dried foods supplemented by 0.25 cc to 5 cc orange juice given daily per os by means of a pipette. Animals of as nearly the same age and weight as possible were selected. The sexes were divided equally between control and experimental groups.
Cedar River At Cedar Rapids, Iowa, C. O. Bates, H. R. Hendricks
Cedar River At Cedar Rapids, Iowa, C. O. Bates, H. R. Hendricks
Proceedings of the Iowa Academy of Science
For thirty-seven years we have noted with regret the gradual increase in the pollution of our river, in fact the increase has been quite rapid during recent years. During that time the inhabitants on the banks have increased three-fold while the amount of pollution that is put into the river has increased probably three-thousand-fold. A third of a century ago the Chlorine as Chlorides was three parts per million, the normal amount for unpolluted water in this region; now it is ten. A half a century ago when the Cedar Rapids water works were first built, raw water was put …