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Notes On The Status And Teaching Of Vertebrate Comparative Anatomy And Embryology In European Universities, Karl E. Goellner

Proceedings of the Iowa Academy of Science

During six months in Europe and Great Britain inquiry was made at 35 universities as to the status of vertebrate comparative anatomy and embryology in undergraduate curricula. People directly involved in teaching these courses were interviewed. Wide variation in programs was found, with evidence of a de-emphasis of morphology in many institutions.

Help! Help Your Substitute Teach Science, David V. Mccalley, Frank W. Starr, O. W. Eason

Iowa Science Teachers Journal

The science teacher often finds that to miss a day of school most frequently means to have lost a day of instruction. School administrators are experiencing serious difficulty in finding substitutes for teachers of the new B.S.C.S., C.B.A., CHEMS and P.S.S.C., programs.

Review - The Architecture Of Molecules, Darrel Hoff

Iowa Science Teachers Journal

The combination of Dr. Pauling's clearly brilliant and succinct prose, plus the brilliantly clear artistry of Mr. Hayward produces an introduction to the architecture of molecules which should grace every high school classroom where chemistry is taught.

Management Of Natural Landscapes In Iowa: An Appraisal, Roger Q. Landers

Proceedings of the Iowa Academy of Science

The management of natural landscapes must be based on well-defined objectives and sound operational techniques. Both of these have been lacking in many situations in Iowa. Examples are presented, and proposals are suggested for an effective program.

A Course In Conservation Of Natural Resources And Field Biology At Wartburg College, Elmer W. Hertel

Proceedings of the Iowa Academy of Science

A four semester hour course in Conservation and Field Biology is offered at Wartburg College. Two I-hour lecture periods and two 2-hour laboratory periods per week are required. The lecture periods deal with the conservation of natural resources and the laboratory periods with ecology, ecosystems and natural history. The relationship between conservation and ecology is stressed.

Macroscopic Invertebrates On The Higher Aquatic Plants At Clear Lake, Lowa, Roger J. Mrachek

Proceedings of the Iowa Academy of Science

Macroscopic invertebrates were removed and counted from 355 samples of higher aquatic vegetation collected between 23 June 1965 and 3 September 1965 at Clear Lake, Iowa. It was found that all species of higher aquatic plants do not harbor the same populations of animals and that the composition of the macroscopic invertebrate populations on the plants showed a successional variation throughout the summer. A direct linear relationship was found between the surface areas of aquatic plants and the numbers of animals found on their surfaces.

The Effect Of The Antithyroid Drug, Tapazole, On Chloride Exchange In White Rats, Herbert K. Brunkhorst

Proceedings of the Iowa Academy of Science

Treatment of white rats with 0.1% methimazole (Tapazole), in distilled water brought about characteristic effects of antithyroid drugs on food intake, body weight, and organ weights, but, did not cause any apparent change in water balance and choride intake and output.

A Recording Cardiotachometer For Radio Capsules Implanted In Mammals With Data From Hibernating Mammals, Melissa Baker, G. Edgar Folk Jr., William Ashlock

Proceedings of the Iowa Academy of Science

Development in recent years of subdermally implanted radio transmitters has widened the scope of physiological research. The advantages of the telemetry method are that the animal is unrestrained in a large enclosure and can carry on its accustomed daily activities unhampered by wires, external sockets, or restraining lines.

Electroencephalograms Of Kittens Exhibiting Spastic Behavior, Kenneth M. Cook, Wade L. Collier

Proceedings of the Iowa Academy of Science

Examination and comparison of some basic reflex tests and of the electroencephalograms of five kittens showing spastic behavior with a control permitted the grouping of these animals into categories which were in accord with those previously determined on the basis of behavioral observation only.

A Method Of Culturing Air Bacteria For Protozoa Media, Robert F. Mote

Proceedings of the Iowa Academy of Science

An infusion-filtrate method for a continuous supply of air-borne bacteria is described, using either hay, soil, rice, or alfalfa for the infusion-filtrate bacterial cultures. Four cc of autoclaved infusion filtrate provided 1 cc of available bacteria each day. Three experiments each for hay, rice, soil, and alfalfa filtrate for periods of 31 and 60 days are described.

Certain Mollusks Of The Environs Of St. John, New Brunswick, Canada, Richard W. Coleman

Proceedings of the Iowa Academy of Science

This discussion is based upon a paper entitled "A REPORT TO THE PROVINCIAL DEPARTMENT OF PUBLIC HEALTH, PROVINCE OF NEW BRUNSWICK, CANADA, ON A SURVEY FOR CERTAIN MOLLUSKS OF THE ENVIRONS OF ST. JOHN, NEW BRUNSWICK, CANADA" sent to the New Brunswick Provincial Health Department in January, 1966. From this survey 17 different groups of mollusks were collected: Acmaea testudinalis Muller, Amnicola limosa Say. Gyraulus parvus Say, Helisoma campanulatum Say, Littorina littorea L., Littorina saxatilis Olivi, Lymnaea emarginata Say, Lymnaea palustris Muller, Lymnaea sp., Mya arenaria L., Mytilus edulis L., Paludestrina minuta Totten, Physa sayi Toppan, Physa sp., Polinices heros …

Factors Affecting The Structure And Distribution Of Terrestrial Pulmonata, Charles G. Atkins

Proceedings of the Iowa Academy of Science

Soil CaCO₃ levels were determined for six ecosystems in Washtenaw and Wayne Counties, Michigan and in Linn County, Iowa; and correlation between these results and the shell thickness of certain terrestrial snails was made. Species used were Anguispira alternata (Say), Triodopsis multilineata (Say), and T. albolabris (Say). Two ecosystems had high CaCO₃ levels (120-144 ppm), three had intermediate levels (93-99 ppm) and one had a low level (40 ppm). Width/thickness ratios of live and cast shells showed that those in high calcium ecosystems had thicker shells than those in low calcium ecosystems, though there were large deviations in …

Histological And Gross Studies Of Brain Tissue Of Kittens Exhibiting Spastic Behavior, Wade L. Collier, Kenneth M. Cook, Fred C. Collier

Proceedings of the Iowa Academy of Science

Histological and gross studies of brain tissue revealed lowered brain weight, lower brain weight to body weight ratios, and poor brain development in relation to the degree of spasticity exhibited in kittens but did not reveal any definite histological changes.

The Rehabilitation And Preservation Of Indian Burial Mounds By The National Park Service, Garland J. Gordon

Proceedings of the Iowa Academy of Science

At Effigy Mounds National Monument in northeast Iowa, the National Park Service is conducting a program to rehabilitate Indian burial mounds which were damaged by unknown individuals before the park was established. The program is described relating the historical background and reasoning for it to the basic purposes of the National Park Service. The use of archeological methods results in the retrieval of data and information that would otherwise be lost or remain unknown. Soil monoliths and other soil samples were collected for detailed analysis at a later time in connection with studies of prehistoric environments. Two basic and inexpensive …

Lntraspecific Variation Within The Conodont Polygnathus Brevilamina, Wayne I. Anderson, Karen Ozias

Proceedings of the Iowa Academy of Science

Intraspecific variation was observed in a study of 177 well preserved specimens of the conodont Polygnathus brevilamina. Variations in the size of platform and in the degree of ornamentation of the platform are illustrated. These variations are present in juvenile specimens. The study indicates that the original definition of Polygnathus brevilamina is too narrow and that a broader concept of speciation is needed if conodont species are to be useable.

An Investigation Of Filigree As Design In Selected Pieces Of Jewelry, Anne K. Graham

Dissertations and Theses @ UNI

The ancient art of filigree jewelry has almost become a lost art. Today, some of the jeweler-artist-craftsmen believe that much of the filigree being done lacks the originality that could make it a creative art expression. Because traditional filigree designs have been handed down from generation to generation they have become copies of what has been done before. Filigree design, by the definition of being any thread-like decoration, is a linear approach to jewelry. A linear approach suggests delicate work with a lightness and femininity. I have tried to maintain a light airy quality in my filigree jewelry, and for …

The Alumnus, V50n1, February 1965, State College Of Iowa

The Alumnus

Inside This Issue:

-- 1964: A Year of Progress at SCI
-- Grant Teaches, Collects in Iran
-- -64: Golden Year for SCI Athletes
-- New Speech Department Plays Full-Fledged Role
-- We hear from alumni...
-- Births
-- Marriages

Sarcocystis Infections In Relation To Age Of Iowa Cottontails (Protozoa: Sarcocystidae), Frederick J. Vande Vusse

Proceedings of the Iowa Academy of Science

Sarcocystis leporum was found in 42 of 173 (24.3 %) cottontail rabbits (Sylvilagus floridanus mearnsi) examined. Infections were not observed in cottontails less than 6 months old. Incidence rose from zero at age 5 months to 67% at age 12 months. Ninety per cent of cottontails 25-48 months old were infected. The age of individual cottontails was estimated from the eye lens weight.

The Secondary Science Teacher As An Elementary Science Consultant, Milbert H. Krohn

Iowa Science Teachers Journal

Helping the elementary science program grow in the environment m which we find it in our Iowa schools should be the aim of every high school science teacher in our state.

The Officers Elected By You Will Serve Our Organization During The 1965-66 Year

Iowa Science Teachers Journal

The candidates and their qualifications are on pages 19-20-21 in this journal. Election Committee: Lyle Anderson, Warren Classon, Verlin Fleagle, Paul Tweeten, and Dr. Robert Yager.

It's Easy To Teach Basic Nuclear Principles With The Low-Cost, Precise "Scalette" Scaler System

Iowa Science Teachers Journal

It's easy to teach basic nuclear principles with the low-cost, precise "Scalette” Scaler System. [advertisement]

Summer Field Ecology, Richard Sweeney

Iowa Science Teachers Journal

Sixteen Johnston High School students spent six weeks obtaining a better understanding of the relationship of animals and plants in their environment and the effect this environment has on the plants and animals. They applied field techniques and t h e scientific method while working both in the laboratory and in the field.

Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

The Course Of Columbiform Plasmodium Relictum Infections In Canaries, B. T. Ridgeway

Proceedings of the Iowa Academy of Science

Canaries were inoculated with a strain of Plasmodium relictum isolated from a mourning dove and maintained by blood passage through pigeons. Parasitemias reached a peak on the fourth day following inoculation in all but two birds, dropped sharply thereafter and remained at low levels through the tenth day of infection. An asexual cycle of twenty to twenty-four hours was observed, with matinal and synchronous sporulation. Gametocyte numbers were low throughout the infections and eleven merozoites, on the average, were produced per mature schizont. Signs of pathogenicity were not observed and all infected birds survived the active phase of infection. The …

Staff And Committee Reports; Conservation In Iowa, 1964

Proceedings of the Iowa Academy of Science

No abstract provided.

Earth Materials Processes History, Part Ii, Chalmer J. Roy

Iowa Science Teachers Journal

This article is the concluding section of a two--part article. The first half, published in the February 1965 Journal included a discussion of earth processes and minerals.

Review - Animal Structure And Function, Robert E. Cook

Iowa Science Teachers Journal

This book is one of ten in the Modern Biology Series. The author discusses the various systems of multicellular organisms in a comparative fashion.

Optic Nerve Size In Blind And Normal Mice, Margaret L. Watson, Jean E. Mckinnie, Donald M. Evans

Proceedings of the Iowa Academy of Science

Measurements of eyes and optic nerves of blind and normal mice were taken at ages ranging from 1-60 days. The mice used were from a Bagg albino strain in which a dominant mutation for blindness had occurred. The size of the optic nerve appears to be dependent upon the development of the eye. Optic nerves from blind eyes are smaller than those from normal eyes, and optic nerves from blind eyes without a lens and with a folded retina are smaller than those from eyes with a lens, even though the lens is vacuolated and the cornea is thickened.

Earth Materials Processes History, Chalmer J. Roy

Iowa Science Teachers Journal

This is the first of a two-part article. The second half will be published in the April 1965 issue of the Journal. The earth materials are rocks, minerals, water, and the atmosphere. Rocks are the essential constituents of the earth's crust.

Labless Laboratory In High School, Mary Nicholas

Iowa Science Teachers Journal

The modern innovations in the science curriculum - Chem-Study, BSCS, and PSSC - are all seemingly orientated to the larger high schools with large enrollment and well-developed laboratories and equipment. Are the small, underdeveloped schools being bypassed in the necessary imparting of scientific knowledge?