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President's Address: The Mission And Spirit Of The Pure Scientist, Louis Begeman Jan 1912

President's Address: The Mission And Spirit Of The Pure Scientist, Louis Begeman

Proceedings of the Iowa Academy of Science

The Mission-Michael Faraday has been called the greatest experimental scientist of all ages. No one who has read the biography of this eminent man of science will be inclined to dispute such a statement. Faraday was interested in all phases of scientific thought but devoted his energies particularly to chemical and electrical research. It is no exaggeration to say that he created modern industrial electricity. His experimental researches covered a period of forty-four years. The mere list of the titles of his papers fills several pages in the scientific catalog published by the Royal Society.

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Food Habits Of Red-Tailed Hawk, Cooper Hawk, And Sparrow Hawk, Frank C. Pellett Jan 1912

Food Habits Of Red-Tailed Hawk, Cooper Hawk, And Sparrow Hawk, Frank C. Pellett

Proceedings of the Iowa Academy of Science

Much has been done, during the past few years, in determining the food habits of the various species of birds by means of stomach examinations. With a sufficient number of specimens, this method should give accurate information. Because of the time and patience required, and the difficulties to be overcome, little has been done by means of personal observation of the individuals in the field. During the past few years, it has been a matter of considerable interest to me, to follow up the reports of laboratory examinations of stomachs by personal observation, especially of the birds of prey.

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Early Iowa Locality Records, B. Shimek Jan 1912

Early Iowa Locality Records, B. Shimek

Proceedings of the Iowa Academy of Science

Students of plant and animal distribution are naturally interested in exact geographic designation, and they frequently suffer inconvenience from the inaccuracy or misconception of locality names. Confusion in our western records sometimes arises because the earlier explorers worked in an unsettled wilderness in which accurate geographic designation was difficult or impossible, and again from the fact that names were often at first applied to larger areas than those to which the name is at present restricted.

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The Harvest Mouse In Iowa, Frank C. Pellett Jan 1912

The Harvest Mouse In Iowa, Frank C. Pellett

Proceedings of the Iowa Academy of Science

When the catalogue of the recent mammals of Iowa was compiled, (See Proc. Ia. Ac. Science, Vol. XVII, pps. 211 to 218), no record of the Western Harvest Mouse, (Reithrodontomys dychei Allen), could be found for this state, but because they were known to be common in eastern Kansas, they were included as likely to be found in Iowa. In making a study of the fauna of a limited region near Atlantic, I have found them to be abundant there, equaling the common white footed mouse. A few specimens were sent to the Biological Survey at Washington, and in …

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Charter Members Of The Iowa Academy Of Science, L. H. Parmmel Jan 1912

Charter Members Of The Iowa Academy Of Science, L. H. Parmmel

Proceedings of the Iowa Academy of Science

Two charter members of the Academy, Dr. Samuel Calvin and Professor J. E. Todd, were primarily geologists, both, however, had such good training in the old natural history courses given in our colleges forty and fifty years ago, that they became all-round naturalists. In the early days of teaching science in Iowa, when they did their pioneer work, they had the whole range of scientific instruction along the lines of natural history and natural science. In late years Dr. Calvin was primarily a geologist, never, however, losing interest in natural history. Several biographical sketches of the late Dr. Calvin have …

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Twenty-Five Years Of Botany In Iowa, Thomas H. Macbride Jan 1912

Twenty-Five Years Of Botany In Iowa, Thomas H. Macbride

Proceedings of the Iowa Academy of Science

To tell of Botany in Iowa for twenty-five years, even as presented in the work of members of this Academy, is a task far more difficult than would at first appear. Shall I present a list of all Iowa botany papers for a quarter of a century; such list would mean much indeed, and such list so far as attainable may be found as an appendix to the present paper. But the slightest reflection suggests that such list, long or short, is, as a matter of fact, no measure whatever of either the industry or the achievements of those who …

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The Progress Of Zoology In Iowa During The Last Twenty-Five Years, C. C. Nutting Jan 1912

The Progress Of Zoology In Iowa During The Last Twenty-Five Years, C. C. Nutting

Proceedings of the Iowa Academy of Science

In endeavoring to estimate the advance in a given science during a definite period of time and in a definite region, it seems evident that the best results can be obtained by ascertaining the work done by the representatives of that science in the region and during the time under consideration, and also the advance made in equipment in the institutions in which that science is taught.

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Native Dye-Plants And Tan-Plants Of Iowa, With Notes On A Few Other Species, Harriette S. Kellogg Jan 1912

Native Dye-Plants And Tan-Plants Of Iowa, With Notes On A Few Other Species, Harriette S. Kellogg

Proceedings of the Iowa Academy of Science

In early days, dyers depended almost entirely upon the vegetable kingdom as the source of their supply of coloring materials, the most important exceptions being sepia from a species of cuttle fish and Tyrian purple from the Murex. Feral plants were the chief reliance but the uncertainty of obtaining a sufficient amount of the raw material, as well as the inferior quality of much of that brought to the market together with the development of the science of organic chemistry led to the replacing of natural dyes with synthetic or artificial dyes.

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Sundry Provincial And Local Phases Of The General Geologic Section Of Iowa, Charles Keyes Jan 1912

Sundry Provincial And Local Phases Of The General Geologic Section Of Iowa, Charles Keyes

Proceedings of the Iowa Academy of Science

In the consideration of the broader taxonomic aspects of the general geologic section of the rocks of our state two features in particular at once arrest attention. One of these features is the completeness and discrimination with which the glacial deposits have been differentiated so that the Iowa sequence becomes the standard Pleistocene section for this country. This is one of the distinct advancements recently made in American geology. For it credit is due mainly to workers in Iowa and especially to Iowa men.

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The First Reported Petrified American Lepidostrobus Is From Warren County, Iowa, John L. Tilton Jan 1912

The First Reported Petrified American Lepidostrobus Is From Warren County, Iowa, John L. Tilton

Proceedings of the Iowa Academy of Science

One day in the summer of 1904 a broken Lepidostrobus petrified nicely by iron pyrites was sent to me by Mr. Samuel Spear, then residing four miles south of Indianola. Each year the specimen was exhibited to the class in Geology when Carboniferous plants were illustrated and the explanation given that it was a remarkably rare and choice specimen of a cone, the like of which I had never seen in any museum; but the real value of the specimen was not fully appreciated till I handed the specimen to Professor Stuart Weller at The University of Chicago in December, …

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Notes On A Collection Of Mammals From Northwestern Iowa, Alexander G. Ruthven, Norman A. Wood Jan 1912

Notes On A Collection Of Mammals From Northwestern Iowa, Alexander G. Ruthven, Norman A. Wood

Proceedings of the Iowa Academy of Science

The University of Michigan Museum has acquired a considerable number of specimens of mammals from Northwestern Iowa during the past five years. Most of the material was obtained by the expedition of 1907, but a number of specimens have been received from residents. The museum ls particularly indebted to Mr. Nels Hansen, of Ruthven, Iowa, who has sent in a considerable amount of valuable material

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A Systematic Outline Of The Reduviidae Of North America, Stanley R. Fracker Jan 1912

A Systematic Outline Of The Reduviidae Of North America, Stanley R. Fracker

Proceedings of the Iowa Academy of Science

The following bibliography is intended to include only those works in which a new contribution is made to the study of the family. I have not had access to some, but the descriptions of all species except those of Provancher have been quoted by Champion, Uhler or Stal and are thus made available. These books and papers have been freely used, especially for verification of details and for localities, credit being given in those cases where an author is wholly or partially responsible for the characters used in keys, etc.

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Summer Term, 1911, Iowa State Teachers College Mar 1911

Summer Term, 1911, 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.

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Notes On Methods For The Study Of Amphibian Eggs And Larvae, Albert Kuntz Jan 1911

Notes On Methods For The Study Of Amphibian Eggs And Larvae, Albert Kuntz

Proceedings of the Iowa Academy of Science

In the preparation of amphibian eggs and larvae for histological study, the technique employed is a factor of primary importance. The amphibian egg represents the final attempt on the part of nature to produce a large yolk-laden egg in which cleavage involves the entire ovum. As a result of this method of cleavage all the embryonic tissues, during the early stages of development, contain more or less yolk. Furthermore, the ventral region of the young embryo contains a large, compact yolk-mass which is not readily penetrated by the fixing and the clearing agent, and the embryonic tissues show a greater …

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Notes On Some Iowa Reptiles, M. P. Somes Jan 1911

Notes On Some Iowa Reptiles, M. P. Somes

Proceedings of the Iowa Academy of Science

The reptiles, while scarce in number of individuals and relatively scarce in number of species in the Iowa fauna, still constitute a group of considerable importance from an economic standpoint as well as zoologically. The group is very generally neglected, this possibly in part because of the almost universal prejudice and in part because of the somewhat scattered and technical nature of the literature. But little has appeared concerning the Reptilia of Iowa since the Osborn Catalogue of the Animals of Iowa and since, from a study of the material in the museum of Iowa University and from notes and …

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Vaccination Against Typhoid Fever, Henry Albert Jan 1911

Vaccination Against Typhoid Fever, Henry Albert

Proceedings of the Iowa Academy of Science

The term vaccination was originally used to designate the introduction of material from pustules of cows affected with cowpox into the human being to protect against smallpox. Such produced a mild form of the disease and conferred immunity to the more severe type as represented by smallpox proper. The vaccine represents, then, a weakened or attenuated form of the virus. The term, as now used, applies to the virus of any infectious disease, —the virulence of which virus has been diminished.

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The Action Of Epinephrin Upon The Muscle Tissue Of The Vein, J. T. M'Clintock Jan 1911

The Action Of Epinephrin Upon The Muscle Tissue Of The Vein, J. T. M'Clintock

Proceedings of the Iowa Academy of Science

The physiology of the venous circulation has, in comparison to that of the arterial, received very little consideration. It has been looked upon as a circulation carried on in a system of inert, elastic tubes, carrying the blood back to the heart from the periphery and without much, if any, physiological action on the part of the venous wall in the process. We are in the habit of looking to the heart, the arterial tension and the skeletal muscle action as being the forces driving the blood through the venous system.

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Building A Museum, T. Van Hyning Jan 1911

Building A Museum, T. Van Hyning

Proceedings of the Iowa Academy of Science

The up-to-date museum is the highest possible type of an educational institution; it supplies the text accompanied by the object. (Object teaching.) All museums should be, in a manner, provincial, i.e., organized to cover a certain territory as a specialty, whether this territory be a single state, several states, the United States, or the whole world. In this connection it should be remembered that almost any single state will produce a much more varied and larger amount of museum material than is commonly supposed. The geology, flora, fauna, prehistoric and civil history of a state, will, in many instances, nearly …

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Summer Term, 1910, Iowa State Teachers College Mar 1910

Summer Term, 1910, 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.

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The Development Of The Sympathetic Nervous System In Birds, Albert Kuntz Jan 1910

The Development Of The Sympathetic Nervous System In Birds, Albert Kuntz

Proceedings of the Iowa Academy of Science

The present investigation of the development of the sympathetic nervous system in birds was undertaken in order to extend the writer's observations on the histogenesis of the sympathetic nervous system in mammals, and to point out certain morphogenetic differences in the development of the sympathetic system in birds and mammals, with a view to their phylogenetic significance.

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1910 Old Gold, Iowa State Teachers College Jan 1910

1910 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.

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Delayed Germination, L. H. Pammel, Charlotte M. King Jan 1910

Delayed Germination, L. H. Pammel, Charlotte M. King

Proceedings of the Iowa Academy of Science

In 1901 there was begun a study of the germination of weed seeds under different conditions. It was observed that a large number of the weed seeds did not germinate freely in the fall.

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The Aftonian Age Of The Aftonian Mammalian Fauna, Samuel Calvin Jan 1910

The Aftonian Age Of The Aftonian Mammalian Fauna, Samuel Calvin

Proceedings of the Iowa Academy of Science

The publication of the paper on the Aftonian Mammalian Fauna, in the Bulletin of the Geological Society of America, volume XX, pages 341-356, has very naturally elicited a number of questions which, however, bear chiefly on two points: First, are we certain as to the precise age of the gravels? And second, are we certain that the mammalian remains described may not be older than the Aftonian?

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Summer Term, 1909, Iowa State Normal School Mar 1909

Summer Term, 1909, Iowa State Normal School

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 Normal School.

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Resolutions On Darwin, T. H. Macbride, L. H. Pammel Jan 1909

Resolutions On Darwin, T. H. Macbride, L. H. Pammel

Proceedings of the Iowa Academy of Science

It is fitting that the Iowa Academy of Science should, in some way, spread on the minutes of its proceedings, its estimate of what science owes to the work of Charles Darwin, the centenary of whose birth occurred on the 12th of February, 1909. Darwin's contribution to science was two-fold: in the first place it consisted of additions, the result of research, additions made directly to the body of the knowledge of his time: secondly, it consisted in a singular impulse to natural history study, an impulse destined to be long-lasting as science itself.

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The Migration Of Nervous Elements Into The Dorsal And Ventral Nerve-Roots Of Embryos Of The Pig, Albert Kuntz Jan 1909

The Migration Of Nervous Elements Into The Dorsal And Ventral Nerve-Roots Of Embryos Of The Pig, Albert Kuntz

Proceedings of the Iowa Academy of Science

That nervous elements migrate peripherally from the neural tube, during early embryonic development, has been observed by several investigators. Harrison ('01) called attention to medullary cells migrating into the ventral nerve roots of embryos of the salmon. Bardeen ('03) observed that "in mammals, as well as in the lower vertebrates, a certain number of cells wander out from the spinal ganglia and cord along with the bundles of axis-cylinder processes. "In his work on embryos of the chick, Carpenter ('06) has shown that cells of an indifferent character migrate from the ventral wall of the mid-brain along the oculomotor nerve …

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President's Address - The Work Of The Iowa Geological Survey, Samuel Calvin Jan 1909

President's Address - The Work Of The Iowa Geological Survey, Samuel Calvin

Proceedings of the Iowa Academy of Science

The present Geological Survey was organized in 1892. Before that time Iowa had had the honor and the distinction of being served in the office of State Geologist by that Nestor of American Geology and Paleontology, James Hall, and by hi worthy successor, Dr. Charles A. White. It was Iowa's great misfortune that neither of these distinguished geologists was permitted to do more than the merest reconnaissance work. Official geological work in Iowa may indeed claim three distinguished names, for geological investigation began in this state u n d e r the direction of David Dale Owen, United States Geologist, …

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Notes On Factors In Fungus Diseases Of Plants, With Records Of Occurrences Of Plant Diseases At Ames For A Period Of Twenty Five Years, L. H. Pammel, Charlotte M. King Jan 1909

Notes On Factors In Fungus Diseases Of Plants, With Records Of Occurrences Of Plant Diseases At Ames For A Period Of Twenty Five Years, L. H. Pammel, Charlotte M. King

Proceedings of the Iowa Academy of Science

It is important in a study of plant diseases to understand the causes of wide-spread epidemics; notes on the prevalence of diseases, and their seasonal and geographical distribution, are an aid to this knowledge.

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The Okoboji Lakeside Laboratory, Thomas H. Macbride Jan 1909

The Okoboji Lakeside Laboratory, Thomas H. Macbride

Proceedings of the Iowa Academy of Science

The establishment of the Okoboji Lakeside Laboratory, founded by the alumni of the State University of Iowa, promises to affect so deeply the future scientific work of our state that some account of its beginning and especially its raison d'etre may rightly claim the attention of the Academy. The laboratory has been located on the west shore of Lake Okoboji in Dickinson County for the reasons following.

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The Action Of Manure On A Certain Iowa Soil, E. B. Watson Jan 1909

The Action Of Manure On A Certain Iowa Soil, E. B. Watson

Proceedings of the Iowa Academy of Science

The soil on which these studies were made was Southern Iowa loess from the experiment field in Decatur County, Iowa. It is a fine loess soil containing considerable clay with the silt, and enough organic matter in the surface to make it dark brown. This loess differs from that of both eastern and western Iowa in its color, which is grey rather than yellow. It is the prevailing type of soil in southern Iowa. The field from which the sample was taken had been in cultivation thirty or forty years, and in that time had probably produced no clover crops. …

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