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On The Lymphatic System Of The Common Rat, Thesle T. Job.

Proceedings of the Iowa Academy of Science

From fifty injected specimens, the gross anatomy of the Common Rat has been studied and outlined. The results of the work have further proven the studies of McClure and Silvester on the Lymphatico-venous communications in the Jugulo-subclavian district, and of Silvester on the renal vein communications, and have established two additional communications, the portal vein connection and the ilio-lumbar vein connection. The main circulation and disposition of the lymphatic system has been determined and the need of further knowledge concerning the histology of the lymph nodes, of which there appear to be two types, is pointed out.

Leaching Of The Pleistocene Drifts Of Eastern Iowa, Morris M. Leighton

Proceedings of the Iowa Academy of Science

The term leaching is applied by glaciologists to that process of dissolving and carrying out in solution by ground water the soluble constituents of the drift, of which lime carbonate is the most notable in the Mississippi Valley. This discussion of that phenomenon is based on observations made by the writer on Pleistocene deposits of the larger part of the east half of Iowa, and in the vicinity of Chicago, Illinois.

The Native And Cultivated Forest Trees And Shrubs Of The Missouri River Basin, L. H. Pammel, G. B. Macdonald, H. B. Clark

Proceedings of the Iowa Academy of Science

At the twentieth annual session of the Iowa Academy of Science held in Ames on April 20 and 21, 1905, Dr. C. E. Bessey of the University of Nebraska in his address on the Forest trees of Eastern Nebraska, expressed the wish that the Iowa botanists would join with those of Nebraska in making a tree survey of the two sides of the river. During the season of 1914 one of us received a letter from Prof. Sargent asking us to furnish him data on the distribution of Iowa trees. We found, however, that our knowledge of some species was …

The Flora Of The Ledges Region Of Boone County, Iowa, William W. Diehl

Proceedings of the Iowa Academy of Science

In the south-central part of Boone County is an area that possesses characteristic plants as well as peculiar geological and topographic features. This is located four miles directly south of Boone and extends for about two miles south toward and along the Des Moines River. Its name "The Ledges" is appropriate because of striking sandstone cliffs from ten to over forty feet in height, extending beyond the perpendicular in some cases as much as twelve feet. This ledge rock here comprises an island of younger massive sandstone surrounded unconformably by somewhat older Carboniferous layers, which are of different structure. The …

An Anomalous Hickory-Nut, Guy West Wilson

Proceedings of the Iowa Academy of Science

During the fall of 1914 the writer observed in the vicinity of Iowa City a tree of the common shag-bark hickory (Carya ovata (Mill.) K. Koch.) which produced a number of abnormal nuts.. As none of these were found with the husk intact no data can be given except for the nuts themselves. Bicarpillary fruits were not uncommon on this tree as at least a dozen examples were found without making a careful search. In most instances the paired nuts separated readily and showed no tendency toward adhesion. They were, however, very much flattened on the appressed surfaces. A …

Flora Of The East Slope Of The Cascade Mountains, In Crook County, Oregon, Morton E. Peck

Proceedings of the Iowa Academy of Science

In the latter part of June, 1914, the writer joined a company of biological investigators and collectors, working under the general direction of Mr. Vernon Bailey, field naturalist of the U. S. Biological Survey, on a trip across the Cascade Mountains, by way of the McKenzie Pass. The purpose of the expedition was to secure certain zoological and botanical data and specimens of the animal and plant life of the region, with a view to determining the life zones of this section of Oregon, as well as to add material to the collections of the several institutions represented by the …

A Convenient Standard Cell, Dieu Ung Huong, J. N. Pearce

Proceedings of the Iowa Academy of Science

Until recently both the Clark and the Weston cells have served as standard sources of electromotive force. Both of these consist of an amalgam of a metal as the anode covered by a saturated solution of the sulphate of the metal and this in conjunction with mercury and mercurous sulphate which serves as the cathode.

The 4-Nitro-5-Methyl-2-Sulphobenzoic Acid And Some Of Its Derivatives, William J. Karslake, Perry A. Bond

Proceedings of the Iowa Academy of Science

The 4-nitro-5-methyl-2-sulphobenzoic acid has been investigated to a limited extent as one of the products formed when the 6-nitro-1, 3-dimethyl-4-sulphonic acid is oxidized by potassium permanganate in dilute alkaline solution. Previous to this research, the only record of its preparation was by Limpricht, in which case only a small amount of the neutral potassium salt was isolated. He gives this as occurring with one-half a molecule of water of crystallization, but does not state which of the two methyl groups of the original acid had been oxidized. The neutral potassium salt does not seem to contain any water of crystallization, …

The Extension Of The Wisconsin Drift Southwest From Des Moines, John L. Tilton

Proceedings of the Iowa Academy of Science

At the last meeting of the Academy I called attention to an extension of the Wisconsin drift south, past Valley Junction into the region which was generally understood to be within the area of Kansan drift. It was with a view to extending observations further south in that direction than was possible in the time previously at my disposal that trips were made in 1914 extending the area examined east to the Army Post, west to the ravines in the southwest portion of Polk county, and, as far south as Norwalk, Cummings and Orillia in Warren county and west to …

The Ste. Genevieve Formation And Its Stratigraphic Relations In Southeastern Iowa, Stuart Weller, Francis M. Van Tuyl

Proceedings of the Iowa Academy of Science

In his report on the geology of Lee county Keyes described a fine-grained, compact limestone at the top of the St. Louis formation, resembling lithographic stone in texture. Gordon reported a similar limestone characterized by Spirifer littoni (=Spirifer pellaensis Weller) and Pugnax ottumwa at the same horizon in Van Buren County. Bain subsequently recognized this member in Keokuk County and named it the Pella because of its typical development at the town of this name in the neighboring county of Marion. This name has been adopted by Savage in his geology of Henry County and by Miller in the Marion …

Contraposed Shore-Lines On Straits Of Juan Du Fuca, Charles Keyes

Proceedings of the Iowa Academy of Science

Among the many novel geologic phenomena to which was directed the attention of those who took part in the trans-continental excursions of the Twelfth International Geological Congress, convened in Canada a year ago, were some remarkable examples of the exhuming of old and buried shores of the Pacific ocean in the vicinity of Puget Sound.

The Loess Of Péczel, Hungary, B. Shimek

Proceedings of the Iowa Academy of Science

Péczel is located a half-hour's ride by rail east of Budapest. Extensive exposures have been made east of the town in a brickyard lying just north of the railway. For two hundred yards interrupted exposures face the railway. Eastward the line of exposures sweeps around the end of a ridge, and is continued northward, on the north side of a narrow valley, along the side of an upland which borders another valley extending in a northerly direction. The entire region lies south of the southern boundary of the European drift sheets.

A Design For Electrical Regulation Of High Temperature Ovens, W. E. Tisdale

Proceedings of the Iowa Academy of Science

In growing Tellurium crystals, a temperature within a few degrees of 450 centigrade must be maintained constantly. The electrical oven available consisted of a porcelain tube five centimeters in diameter and thirty centimeters long, covered with asbestos. The need for making a regulator arose from the fact that nowhere in the catalogues available was there a regulator advertised that would, be contained within the tube without completely closing it. Nearly all temperature regulators for electrically heated apparatus break the heating current when the temperature rises to a given point, and make it when the apparatus cools, and the difference between …

The Absence Of Liberation Or Absorption Of Electrons During A Change From The Conduction To The Non-Conducting State, L. E. Dodd

Proceedings of the Iowa Academy of Science

Metallic selenium in the crystalline form is an electrical conductor. In the amorphous form, which may be produced by melting a selenium crystal, the substance is an electrical insulator. If, as supposed, electrical conductivity in metals is due to free electrons, then in the change from the conducting to the non-conducting state there must be a disappearance of free electrons. This disappearance could be accounted for by a liberation of electrons into the space surrounding the substance, or by a recombination of free electrons with positive residues to form the neutral molecules of the insulator. In this paper is described …

The Crystal Phonopticon In Its Adaptation To Enable The Blind To Read The Printed Page, F. C. Brown

Proceedings of the Iowa Academy of Science

40. The crystal phonopticon

The crystal phonopticon is an arrangement of apparatus whereby illumination characteristics (e.g. such as come from a small portion of any printed page) of variable arrangement, intensity and sequence may be transformed into sound progressions of corresponding variable intensity, arrangement, duration and sequence. It is called the Crystal Phonopticon because by the use of recently discovered crystals, of selenium light impressions are transformed into sound impressions.

Psychology Applied To The Improvement Of Control Of The Pitch Of The Voice In Singing, Carl J. Knock

Proceedings of the Iowa Academy of Science

The object of this research is to ascertain some of the elements in the acquisition of accuracy of pitch in singing. The study was divided into three divisions; (1) a preliminary series of five tests, in which no information was given the observer in regard to the accuracy of his singing; (2) a practice series of ten tests, during which the observer was informed of the error in pitch after each trial; and (3) a final series of five tests conducted in the same manner as the first. The object of the first test was to ascertain the accuracy of …

The Psychogram In Vocational Guidance, Carl E. Seashore

Proceedings of the Iowa Academy of Science

The speaker reported a method, "percental rank”, for reducing diverse psychophysic measurements to a common unit for the purpose of a simple and direct numerical statement and graphic representation of a series of measurements on talent. The illustrations were drawn from the measurements on musical talent. After a certain measurement has been standardized so that the various factors, subjective and objective, are under control, a large number, from 400 to 4,000, depending upon the needs, are made for the purpose of establishing a normal distribution of abilities.

Snakes Swallowing Their Young, E. D. Ball

Proceedings of the Iowa Academy of Science

Doctor Herrick in his review of the "Infancy of Animals" in a recent number of Science raises the question of the accuracy of observations on snakes swallowing their young. As the writer once had what was probably a particularly favorable opportunity to witness this phenomenon, it occurs to him that the following facts may be worth recording.

Notes On The Distribution Of The Prairie Spotted Skunk In Iowa, B. H. Bailey

Proceedings of the Iowa Academy of Science

In 1906 the U. S. Department of Agriculture published faunal bulletin No. 26 by Arthur H. Howell, Assistant Biologist of the U. S. Biological Survey on the "Revision of the Skunks of the Genus Spilogale". According to this report the only species referred to Iowa is Spilogale interrupta Raf., three specimens of which were examined from this state; one of which came from Gladbrook, and two from Marshalltown. His distributional map shows the range of this species as extending to southeastern Minnesota on the following statement by Mr. E.T. Seton "He (E. T. Seton) states that two were killed by …

The Building And Function Of The College Museum, B. H. Bailey

Proceedings of the Iowa Academy of Science

It is with a keen sense of how far short of the real mark he shall come that the writer aims at the center of this target. It is also with an appreciation of the situation in the average college with regard to meager funds, limited space, lack of appreciation by the authorities as well as the public, and the frequent unpreparedness along museum lines and the overworked condition of the professor of natural sciences.

Macroscopic Fuana Of A Small Brook, D. M. Brumfiel

Proceedings of the Iowa Academy of Science

The brief paper here presented is but the first of a series of studies which the writer proposes to work out concerning the ecological relations of the animal life of Johnson County. Johnson County has been chosen as the field for observations for several reasons, among which are its availability from Iowa City and the University buildings as a center, its wealth of diversified habitats, and the most excellent work already done by Professor Bohumil Shimek in the field of plant ecology, upon which all studies of animal ecology depend, as all animals ultimately depend upon plants for food.

Subject Index; Author Index

Proceedings of the Iowa Academy of Science

No abstract provided.

The Age Of The Terrace South Of Des Moines, Iowa, John L. Tilton

Proceedings of the Iowa Academy of Science

Along the Raccoon River in Polk County, along the Des Moines river, and along the tributaries of the Des Moines, from Warren County there is a terrace, previously noted by geological workers. An important question with the writer has been this: Do the gravels in this terrace form one continuous deposit, or do they form two separate deposits, an upper of Wisconsin or post-Wisconsin age, and an underlying portion that is older than the upper deposit, and possibly of Aftonian age? This question was suggested by a division in the sand recorded in well records, and by the presence of …

Fall Term Commencement [Program], November 24, 1914, Iowa State Teachers College

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

Summer Term Commencement [Program], July 24, 1914, Iowa State Teachers College

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

Courses Of Study And Program Of Recitations, 1914-1915, 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.

Spring Term Commencement [Program], June 9, 1914, Iowa State Teachers College

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

College Catalog And Circular 1914, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents:

Calendar for 1914-1915 ... 6
Officers of Administration ... 8
Officers of Instruction ... 8
Faculty Committees 1914-1915 ... 16
Plan of Organization ... 18
Divisions of the Faculty ... 19
General Regulations ... 20
Faculty Regulations ... 23
Order and Deportment ... 23
Credits and Scheduling ... 24
Extension Service ... 24
Exchange of Students ... 25
Expenses and Fees ... 26
College Organizations ... 28
Training in Actual Teaching ... 30
Public Lectures and Entertainments ... 33
Boarding and Lodging ... 35
Requirements for Admission ... 37
Department Courses ... 43
The Diploma Courses ... …

Summer Term, Eighteenth Annual Session, 1914, 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.

Equilibrium In The System: Mercuric Iodine And Anilin, E. J. Fry, J. N. Pearce

Proceedings of the Iowa Academy of Science

Those who have worked with anilin have no doubt observed its extraordinary high solvent power upon many of the inorganic salts. Like ammonia it also has the power of combining with salts to form stable crystalline compounds containing from one to as high as six molecules of anilin of crystallization.