Digital Commons Network^™

Significance Of The Concealed Crests Of Fly Catchers, C. C. Nutting

Proceedings of the Iowa Academy of Science

In all the works on animal coloration that have come under my observation, there is a marked absence of any attempt to account for the concealed crests of bright colors on the crown of many birds, notably the Tyrannidae or "Fly-Catchers."

Phaenological Notes For 1892, L. H. Pammel

Proceedings of the Iowa Academy of Science

It has always seemed to me that there is abundant room for such botanists as have little time to do original work to devote a few moments in taking notes on the leafing, flowering and ripening of seeds of our native and cultivated plants, in short everything that may be considered under the head of phaenological observations. These observations, like those on the pollination of flowers may be made at odd moments and would be of great service to working botanists. If a few scattering botanists would only collect insects on various flowers and make field observations, then turn them …

The Key For The Identification Of The Weed Seeds Found In Clover Seed, F. C. Stewart

Proceedings of the Iowa Academy of Science

The identification of weed seeds, though an important matter, is not an easy one. The average person knows Fox-tail, and probably that is about all. Even botanists, who have not given the subject special attention, will be surprised to find how small a number of weed seeds they are able to identify without study.

Notes On Aphididae, Herbert Osborn, F. A. Sirrine

Proceedings of the Iowa Academy of Science

A list of the Aphididae of the State as far as collected was published in the proceedings of this Academy for 1890-91 as part of the catalogue of Iowa Hemiptera. It was known at the time to be very incomplete, but it was considered best to include only such species as had been actually observed. As the past season was favorable, especially during autumn, for collecting in this family, considerable more material has been added. We present, therefore, a supplemental list with notes on habits and references to host plants.

Life Histories Of Jassidae, Herbert Osborn

Proceedings of the Iowa Academy of Science

Observations upon the grass feeding species of Jassidae have been directed particularly throughout the season to learning important steps in their life history. The first point which we tried to determine was the stage in which the winter is passed.

Additions And Corrections To Catalogue Of Hemiptera, Herbert Osborn

Proceedings of the Iowa Academy of Science

I desire here to make a few additions and corrections to the list of Hemiptera presented in last report.

Some Observations On Helix Cooperi, F. M. Witter

Proceedings of the Iowa Academy of Science

In "Land and Fresh Water Shells,'' Part I, by W. G. Binney and T. Bland, 1869, the mollusk to which I invite your attention is called Helix cooperi. In "Manual of American Land Shells," by W. G. Binney, 1885, this little mollusk is honored with the following synonymy: Helix strigosa, Gould; Anguispira strigosa, Tryon; Helix cooperi, W. G. Binney; Anguispira cooperi, Tryon; Helix haydeni, Gobb, Patula strigosa. W. G. Binney; Anguispira bruneri, Ancy. In this work Mr. Binney uses the second name proposed by himself, viz: Patula strigosa. Inasmuch as the regions inhabited by this creature are quite diverse in …

Some American Eruptive Granites, Charles Rollin Keyes

Proceedings of the Iowa Academy of Science

Two hypotheses, diametrically opposed, have been entertained by geologists in explaining the origin of large granitic masses. According to the one a granite is the last stage in the metamorphic alteration of mechanical sediments. According to the other a granitic mass is the product of the gradual cooling of an acidic molten magma under pressure. In the first case it is claimed that all the gradations have been traced in the same mass from undoubted elastics through slaty, schistose and gneissic phases to the truly granitic types; so that one end of an originally sedimentary deposit may be now unaltered, …

Catalog Of State Normal School, 1890-91, Iowa State Normal School

UNI Programs and Courses Catalogs

Table of Contents:

Calendar for 1891-92 ... 2
Board of Directors ... 3
Faculty ... 4
Courses of Study ... 5
Regular Courses ... 6
High School Graduates ... 10
The Professional Course for College Graduates ... 14
General Information ... 17
Expenses ... 19
Graduation ... 22
Rules and Regulations ... 24
Catalog of Students 1890-91 ... 36
Summary ... 52
Alumni ... 55

Fifteenth Annual Commencement, 1891, Iowa State Normal School

UNI Commencement Programs

Information relating to events associated with commencement ceremonies at the Iowa State Normal School.

Commencement, 1891, Iowa State Normal School

UNI Commencement Programs

Information relating to events associated with commencement ceremonies at the Iowa State Normal School.

Commencement, June 11, 1890, Iowa State Normal School

UNI Commencement Programs

Information relating to events associated with commencement ceremonies at the Iowa State Normal School.

Program, Iowa State Normal School, Spring Term, 1890, Iowa State Normal School

UNI Schedule of Classes

A listing and schedule of the courses being taught at the Iowa State Normal School.

A New Distilling Flask For Use In The Kjeldahl Process, G. E. Patrick, D. B. Bisbee

Proceedings of the Iowa Academy of Science

The only serious drawback to the Kjeldahl method of nitrogen determination is the breakage of distilling flasks, and in laboratories where many determinations of albuminoid nitrogen are made by the Stutzer process this breakage is often a matter of much annoyance and considerable expense, since only the best quality of flasks will long stand the requirements of the process.

Corn Smut, [L. H. Pammel]

Proceedings of the Iowa Academy of Science

It is the generally accepted opinion among botanists that corn smut (Ustilago zeae-mays) enters the tissues of its host during the early stages of corn, shortly after germination. These opinions are based on the careful experiments conducted by Dr. Julius Kuehn, a careful German investigator. Last spring some experiments were started on the College Farm with the view of preventing this troublesome disease. It was expected, of course, that the results at the close of the season would show a decided advantage in the treated corn, but to my surprise the results were entirely negative.

Catalogue Of The Hemiptera Of Iowa, Herbert Osborn

Proceedings of the Iowa Academy of Science

A first notice of the Hemiptera was presented to the Academy in December, 1887, and a second in 1889. The third installment was presented September, 1890, and comprised sixty-seven species. The previous lists, not having been published, will make the catalogue of much greater value to combine them here. This group of insects is an exceedingly important one, containing many very injurious species. While many of the especially destructive forms have had extended notice, no list of the species occurring in the State has hitherto appeared.

Catalog Of State Normal School, 1889-90, Iowa State Normal School

UNI Programs and Courses Catalogs

Table of Contents:

Calendar for 1890-91 ... 2
Board of Directors ... 3
Faculty ... 4
Courses of Study ... 5
Regular Courses ... 6
High School Graduates ... 10
The Professional Course for College Graduates ... 15
General Information ... 17
Expenses ... 19
Graduation ... 22
Text-Books Used ... 23
Rules and Regulations ... 25
Catalog of Students 1889-90 ... 36
Summary ... 54
Alumni ... 56

Exhibition Of Volcanic Dust From Omaha, Nebraska, J. E. Todd

Proceedings of the Iowa Academy of Science

This material was from a stratum of whitish aspect, about 18 inches in thickness, found in the bluffs facing the Missouri River about 7½ miles north of Omaha. It has the same general characteristics as the volcanic dust which has been found in quantity along the Republican, in southern Nebraska, also in Knox, Cumming and Seward Counties in the same State. This statement is made on the authority of J. S. Diller of the United States Geological survey, who has examined samples from all these localities microscopically. This differs in being stained with oxide of iron, and the sharp angular …

The Tertiary Silicified Woods Of Eastern Arkansas, R. Ellsworth Call

Proceedings of the Iowa Academy of Science

The occurrence of silicified wood in the sands and gravels of the Tertiary of the Lower Mississippi Valley has long been known. Aside, however, from the numerous localities mentioned by Hilgard, nearly all of which are in the State of Mississippi, little attention has been given it. Numerous geologists have spoken of it or incidentally studied it in connection with other investigations, but hitherto no attempt has been made to recognize the species and fix their taxonomic value, if, indeed, they possess any such value. Among those who have investigated the Orange Sands and other Tertiary deposits of the Mississippi …

Membership Of The Academy And Constitution

Proceedings of the Iowa Academy of Science

No abstract provided.

Striation Of Rocks By River Ice, J. E. Todd

Proceedings of the Iowa Academy of Science

Though it is commonly admitted by geologists, that both land-ice and floating ice are capable of striating rocks, when armed with erratics; careful discriminations seem to be largely neglected. The question, whether river-ice was ever the active agent in scratching rocks, had been raised in the writer's mind several years since by a few observations in Dakota. Diligent search at several seemingly favorable localities had given only negative evidence, until this past season, when two or three observations seem to demonstrate the fact that such is not very infrequently the case.

Preliminary Note On The Sedentary Habits Of Platyceras, Charles R. Keyes

Proceedings of the Iowa Academy of Science

Platyceras is a generic term which has been proposed for a Paleozoic group of mollusks whose shells are "sub-oval or sub-globose, with a small spire, the whorls of which are sometimes free and sometimes contiguous; the mouth generally campanulated or expanded." These fossil shells have been frequently referred to the genus of modern mollusca known as Capulus. In the case of Platyceras as in many other Paleozoic genera, numerous species have been based, not on any apparent distinctive character, but seemingly simply on their occurrence at different geological horizons; and this has given rise to the establishment of many species …

The Fishes Of The Des Moines Basin, R. Ellsworth Call

Proceedings of the Iowa Academy of Science

To one familiar with so much of the literature of science as pertains to the natural history of the State of Iowa it is surprising that so little has been done in relation to its fishes. A list designed to stand for the icthyic fauna of the State has yet to be compiled. There have appeared but three papers devoted to Iowa fishes. Of these three one was published under the auspices of the United States National Museum, the others were both published in Iowa, under Iowa auspices and by an Iowa man. The first of these papers lists thirty …

A New Conocardium From The Iowa Devonian, Charles R. Keyes

Proceedings of the Iowa Academy of Science

Shell of medium size, subtrigonal, anterior view broadly cordate. Anterior end truncate, with a forward slope from the umbones to the lower anterior sharply rounded extremity. Dorsal margin behind the beaks slightly curved, with the edges of the valves incurved while in front of the beaks it is produced forward into a more or less prominent alate extension; basal margin crenate within; posterior extremity at the hinge line decidedly angular. Beaks rather prominent, gibbous, incurved. Hiatus lanceolate; occupying about two-thirds of the lower posterior margin. Surface marked by simple, regular, radiating costae, about forty in number, twenty-five of which occupy …

Some Of The Causes And Results Of Polygamy Among The Pinnipedia, C. C. Nutting

Proceedings of the Iowa Academy of Science

Several years ago the writer was much struck by the great sexual differences met with among the Gallinae, and had noted the fact that there was a relation between sexual disparity in size and polygamy.

Egg-Laying Of The Apple Curculio (Anthonomus Quadrigibus Say), C. P. Gillette

Proceedings of the Iowa Academy of Science

I am not aware that anyone has published actual observations on the method of oviposition by this insect. On the 13th of June, 1889, I was fortunate enough to see a female perform the entire operation which was as follows: First a cavity was eaten in the apple as deep as the beak was long, the bottom being much enlarged and sub-triangular in outline. The walls of the cavity converged to the opening which was only large enough to admit the slender beak.

Contribution To The Fauna Of The Lower Coal Measures Of Central Iowa, Charles R. Keyes

Proceedings of the Iowa Academy of Science

Among a large number of species recently discovered in the lower coal measures near Des Moines are some hitherto unrecognized forms. The following are the descriptions of three of the most important shells.

Notes On The Redrock Sandstone, Charles R. Keyes

Proceedings of the Iowa Academy of Science

The sandstone of Redrock, in Marion County, Iowa, has long attracted popular attention. The bright vermillion cliffs rise to a height of one hundred to one hundred and fifty feet above the water surface of the Des Moines River. The red coloration of the rock, however, is (?). The formation has a known geographic extent of at least twenty miles; and probably stretches out much farther. At Redrock Cliff the stone is massive for the most part, but rather soft and thin-bedded above. At this place it is a very fine grained and homogeneous sand rock, some portions even affording …

Brick And Other Clays Of Des Moines, Charles R. Keyes

Proceedings of the Iowa Academy of Science

In the absence of extensive exposures of good building stone, in the immediate vicinity of many of the larger cities of the State, architectural materials must be derived in large part always from other sources. Fortunately in and about these towns there are exhaustless supplies of good clays from which may be manufactured easily the ordinary structural and ornamental materials. These clays, however, as is well known, have diverse properties, certain ones being better adapted for particular purposes than others, while some may be used more advantageously in different ways. Hence the indiscriminate working of the deposits is not attended …

Notes On Missouri Minerals, Erasmus Haworth

Proceedings of the Iowa Academy of Science

At various places in the Archaean areas of Missouri the granites and porphyries are cut by dikes of basic rocks which usually trend N. E. and: S. W. but occasionally in other directions. The dike rocks are comparatively constant in composition. When holo-crystalline they are a diabase, or an olivine diabase, and when less perfectly crystallized they generally correspond to diabase porphyrite.