Life Sciences Commons^™

The House Fly (Musca Domestica) And Allies, Lawrence Bruner

Department of Entomology: Faculty Publications

"Of what use are flies, anyway?" This and similar questions have frequently been asked of the writer by persons who seem to think that each and every living thing has been created solely for some special benefit to man.

Primarily the common house fly (Musca domestica), together with several of its allies which habitually frequent human habitations, are scavengers. In this role they assist in the removal of filth and litter of various sorts that too often are permitted to accumulate in the vicinity of our homes, schools, offices, and ' places of business or pleasure. These flies …

The Sphegoidea Of Nebraska, Harry Scott Smith

University Studies (University of Nebraska) (1888–1984)

The following paper is the result of a study pursued by the writer at odd intervals during the past two years, and is based on the material contained in the collection of the University of Nebraska. Although the list is a fairly large one for a single state, nothing like systematic collecting has been done on the group, and it is expected that a great many additional species will be found in the near future. The only portion of the state that has been at all closely collected is Sioux county, where, during the past ten years, several zoological expeditions …

Histological Studies In The Artemisia Formation, Raymond John Pool

University Studies (University of Nebraska) (1888–1984)

Many investigators have written on the subject of leaf histology and morphology in general, and a few have, in addition, touched upon the physiological significance of structures found during the progress of the study. Among these writers are Haberlandt, Pick, Stahl, Bonnier, Wagner, Hesselmann, and Clements. Most of the work, however, has been purely histological or morphological with little or no reference to environic forces. But in these later days of the development of the new ecology those forces or factors which have been potent in the evolution of plants and which are moulding plants today have come under careful …

A Plea For The Protection Of Our Birds, Lawrence Bruner

Department of Entomology: Faculty Publications

The fact that insect depredations are increasing in extent each succeeding year makes it plain to us that something must be done to prevent it, and that quickly. We have found to our sorrow that, although we are continually making increased efforts to destroy these pests, our efforts avail but little and the destruction of our crops goes on. What, then, is to be done? How can we be released from this ever-increasing struggle for existence? The answer is plain. Heed the advice of the Naturalist who has made a study of the life-histories of the various other living creatures …

The Arrhenuri Of The United States, Ruth Marshall

School of Biological Sciences: Faculty Publications

The Arrhenuri comprise the largest genus of the Hydrachnidz, and one of the most highly differentiated and widely distributed. The genus is easily recognized by the following characters. The thick chitinous covering of the body is pierced by large pores. A circular furrow on the dorsal side marks off an area which is entirely enclosed in the female, in the male usually open onto the posterior extension of the body. The females are oval in form and much alike ; the males are smaller and vary greatly from each other and from the females. They are characterized by a posterior …

What Forestry Has Done, Treadwell Cleaveland Jr.

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Many people in this country think that forestry had never been tried until the government began to practice it upon the national forests. Yet forestry is practiced by every civilized country in the world, except China and Turkey. It gets results which can be got in no other way, and which are necessary to the general welfare. Forestry is not a new thing. It was discussed two thousand years ago, and it has been studied and applied with increasing thoroughness ever since.

The principles of forestry are everywhere the same. They rest on natural laws, which are at work everywhere …

Pb1908-27 Loss From Cornstalk Disease In Custer County, Nebraska, During The Winter Of 1906-1907 (Distributed January 1908, Reprinted December 1930), F.J. Alway, A.T. Peters

University of Nebraska-Lincoln Extension: Historical Materials

"Cornstalk disease" is the name given to the cause or causes of death of cattle allowed to run in fields of standing cornstalks from which the ears have been gathered. It is probable that "many different maladies have been included under this name." In Nebraska, however, there is such a similarity in the symptoms reported by the farmers that it seems probable that the great majority of the losses attributed to cornstalk disease are really due to some common cause. As to the exact nature of this cause nothing is known. However, various theories have been advanced, and methods of …

The Arrhenuri Of The United States, Ruth Marshall

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The Arrhenuri comprise the largest genus of the Hydrachnidre, and one of the most highly differentiated and widely distributed. The genus is easily recognized by the following characters. The thick chitinous covering of the body is pierced by large pores. A circular furrow on the dorsal side marks off an area which is entirely enclosed in the female, in the male usually open onto the posterior extension of the body. The females are oval in form and much alike; the males are smaller and vary greatly from each other and from the females. They are characterized by a posterior prolongation …

Revision Of The Non-Combed Eyed Siphonaptera, Karl Jordan, Nathaniel Charles Rothschild

Harold W. Manter Laboratory of Parasitology: Library Materials

Introduction (excerpt)

The importance of certain species of fleas in relation to the epidemiology of plague has been so amply demonstrated (see Journal of Hygiene, volumes VI 1906, p. 426, and VII 1907, p. 395) that an explanation appears scarcely necessary for our publishing a paper dealing with a revision of the non-pectinated eyed Siphonaptera. With the demonstration that fleas are capable of transmitting plague, their study at once ceased to be the mere hobby of a small group of entomological specialists. An accurate knowledge of fleas, both with regard to their structure and biology, is at present a …

Irrigation Farming: A Handbook For The Proper Application Of Water In The Production Of Crops, Lucius M. Wilcox

University of Nebraska-Lincoln Extension: Historical Materials

A handbook for the application of water in the production of crops.

On The Structure Of The Pistils Of Some Grasses, Elda Rema Walker

University Studies (University of Nebraska) (1888–1984)

The purpose of this investigation has been to determine to what extent there is evidence of a third carpel in the pistils of grasses. The study has been carried on, by means of cross and longitudinal sections, cut in different planes, as well as by a study of the external appearance of the pistils. The following are the results obtained:

Tribe Festuceae

Tribe Hordeae

Tribe Chlorideae

Tribe Aveneae

Tribe Agrostidcae

Tribe Phalarideae

Tribe Oryzeae

Tribe Paniceae

Tribe Andropogoneae

Tribe Maydeae

EXPLANATlON OF PLATES

Malarial Fever In Horses, A. T. Peters

University of Nebraska Historical Extension: Bulletin

This disease is also called "swamp fever" by farmers, and "pernicious anaemia" by veterinarians. In Nebraska many of the farmers call the disease "typhoid fever," for it resembles this fever very much. The manner in which the disease is contracted by horses is not definitely understood. In the last few years, the veterinarians in the Philippines have discovered a disease, prevalent in India under the name of "surra," the description of which corresponds very much to that of malarial fever of horses in this country, with the exception that bacteriologists have not been able to find the surra parasite in …

Report On The Orthoptera Of Trinidad, West Indies, Lawrence Bruner

Department of Entomology: Faculty Publications

Several years ago Mr. H. D. Chipman collected insects on the Island of Trinidad, British West Indies, and the writer secured a fairly complete set of the Orthoptera taken by him. Since that time a few additional forms have been obtained from G. E. Tryhane, of St. Anne's, Trinidad, and others from W. E. Broadway, of St. George's Grenada, who formerly collected on Trinidad. Altogether upwards of one hundred (112) species have thus been accumulated and form the basis of this paper.

Unlike others of the West Indies, this island is more closely related to the South American mainland in …

Synoptic List Of Paraguayan Acrididæ, Or Locusts, With Descriptions Of New Forms, Lawrence Bruner

Department of Entomology: Faculty Publications

The present paper is based primarily on the extensive collection obtained from Mr. W. T. Foster, of Sapucay, Paraguay, and now belonging to the United States National Museum. In addition, the writer hns personally collected in that country, besides having purchased several small collections from that section of South America. To inake the paper as complete as possible, Giglio-Tos's papers have been consulted, and all the forms not represented in the collections studied have been included.

Among the specimens illustrated are:

Cephalocoema costulata Burmeister

Stirapleura variabilis Bruner

Sinipta dalmani Stal

Euplectrotettix conspersus Bruner

Dichroatettix viridifrons Bruner

Parorphula graminea Bruner

Plectrotettix …

Experiments With Corn., T. L. Lyon

University of Nebraska Historical Extension: Bulletin

Cooperative Tests of Varieties -- Variety Tests on the Experiment Station Farm -- Relation of Size of Ear to Yield -- Thickness of Planting Corn -- Tillering of Corn -- Increasing Yields of Corn by Selection of Plants -- Selecting Corn for High Oil Content -- Adaptation of Corn to a New Locality -- A Cross-Bred Variety -- Keeping Seed Corn -- Depth of Planting.

Cattle Feeding Experiment. Roughness Supplementary To Corn For Fattening Two-Year-Old Range Steers., H. R. Smith

University of Nebraska Historical Extension: Bulletin

In the economical production of beef, the character of the roughness fed in connection with corn is a factor of greater importance than we have given it in the past. Heretofore, 'the inclination among cattle feeders has been to depend almost entirely upon corn for producing beef, supplying almost any sort of roughness that would satisfy the craving of the animal for something bulky. Some, in fact, have operated upon the theory that in producing beef for the market it is desirable to feed corn as heavily as possible, discouraging the consumption of rough feed by supplying an inferior quality …

Studies On Human Parasites In North America: I. Filaria Loa, Henry B. Ward

University Studies (University of Nebraska) (1888–1984)

Introduction. Origin and scope of paper. Data on new cases in North America. Cases of Filaria loa on record. List of genuine cases. Cases wrongly assigned to Filaria loa. Morphology of Filaria loa. Structure of the parasite. Life history. Taxonomy. Geographical distribution. Pathology of Filaria loa. Seat of the parasite. Effects on the host. Calabar swellings. Clinical data. Case of Milroy. Case of Lota. Critical bibliography of Filaria loa. Annotated list of references.

In February, 1902, Dr. W. F. Milroy, of Omaha, brought me a specimen in alcohol which he had just removed from the eye …

On The Movements Of Petals, Esther Pearl Hensel

University Studies (University of Nebraska) (1888–1984)

The following paper has to do with an investigation of the physical causes· which bring about opening and closing movements, periodic or otherwise, of certain flowers. With that end in view, seven different species of flowering plants have been experimented upon directly, a much larger number being simply observed with respect to the nature, time, etc., of their anthotropic movements. Movement consists in the corolla taking upon itself either the open or closed position for certain periods of the day or night; for example, the morning glory (Ipomoea purpurea) opens early in the morning (from 4:00 to 5 …

Winter Wheat: Cooperative Experiments With The United States Department Of Agriculture, T. L. Lyon, Alvin Keyser

University of Nebraska Historical Extension: Bulletin

Variety Tests of Winter Wheat in 1902, 1903, and 1904 -- Cooperative Tests of Knarkof and Beloglina Wheats -- Nature and Causes of "Yellow Berry" in Hard Winter Wheat -- "Running Out" of Seed Wheat -- Importance of Good Tillage -- Variations in Wheat from Different Regions and in Different Seasons

A Test Of Calf Rations: Methods Of Controlling Contamination Of Milk During Milking, A. L. Haecker, C. W. Melick

University of Nebraska Historical Extension: Bulletin

Since the spring of 1899 the Department of Dairy Husbandry has been conducting experiments in calf rearing by using hand separator skim-milk and light rations of grain.

The first test was published in Bulletin No. 68 of this Station and dealt with a comparison of calves reared by hand with those sucking their dams. The hand-fed calves were reared on skim-milk, ground flaxseed being used to replace the lacking butter fat. This test resulted in a fine lot of calves reared at a very low cost, but it also brought out the fact that much more data were needed in …

Plant Migration Studies, Charles E. Bessey

University Studies (University of Nebraska) (1888–1984)

It is a familiar fact that new species appear from time to time among the native plants of a region. Such newcomers turn out on examination to be new only in the sense that they have not previously lived in the region, and in every instance these new plants are found to have come from other regions where they had existed for a longer or shorter period of time. In some cases the new species remain for a time and then disappear, or at least become inconspicuous, but more commonly they crowd in among the former plants and become permanent …

Plant Migration Studies: Forest Trees, Charles E. Bessey

University Studies (University of Nebraska) (1888–1984)

It is a familiar fact that new species appear from time to time among the native plants of a region. Such newcomers turn out on examination to be new only in the sense that they have not previously lived in the region, and in every instance these new plants are found to have come from other regions where they had existed for a longer or shorter period of time. In some cases the · new species remain for a time and then disappear, or at least become inconspicuous, but more commonly they crowd in among the former plants and become …

The Relation Of Leaf Structure To Physical Factors, Edith Schwartz Clements

School of Biological Sciences: Faculty Publications

The leaf, as the seat of important physiological functions of the plant, and because of its modification by external factors, has long been a fruitful subject for investigation. As a rule, however, investigators have confined themselves solely to the histology and morphology of the leaf, independent of its relations to physical factors. Where the latter have been considered at all, it has been in a more or less general way, or undue importance has been assigned to one or another of the physical factors, and others have been ignored entirely. In no case have they been carefully measured. The aim …

The Grasses Of Nebraska, Charles E. Bessey, Robert Bolin , Depositor

School of Biological Sciences: Faculty Publications

Dr Bessey was the Nebraska State Botanist and Professor of Botany at University of Nebraska. This report contains a classification list of grasses found in the state and brief comments on the usefulness of the various grasses.

The Chimney-Shaped Stomata Of Holacantha Emoryi, Charles E. Bessey

Papers in Systematics and Biological Diversity

Last December two fine twigs and a cluster of the ripe fruits of the "burro thorn" (Holacantha emoryi Gray) were brought to the Botanical Department of the University of Nebraska by Mrs. Dorothy Bacon, who had collected them in the Salt River valley, near Phoenix, Arizona. They at once attracted attention because of their complete leaflessness, and the thorny nature of their branches. The shrub is said to grow about three meters high, and to form ail impenetrable thicket from the ground up. It grows in the desert, where it was first found about fifty years ago by Major …

The Distribution Of The Native Forest Trees Of Nebraska, Charles E. Bessey, Robert Bolin , Depositor

School of Biological Sciences: Faculty Publications

This document lists 67 trees identified by Dr Bessey with the help of others around the state. It includes the common and scientific names as well brief comment about each tree. Small maps are provided showing the distribution of each tree.

New Elementary Agriculture For Rural And Graded Schools, Charles E. Bessey, Lawrence Bruner, G. D. Swezey

Department of Entomology: Faculty Publications

Nebraska is an agricultural state. The products of her soil are the basis of her industries and her prosperity. The children of our great state of Nebraska should be familiar with our crops, our grains and grasses, our flowers and fruits, our trees and shrubs and weeds, our domestic animals and birds and insects. Our children should have a practical knowledge of the management of a farm, of the composition of the soil, and of the adaptability of the farm and its soil for the cultivation of certain plants and the counter effect of such plant growth upon the soil. …

Some Notes On The Bee Genus Andrena, Lawrence Bruner

Department of Entomology: Faculty Publications

Several years ago the writer undertook to determine and lable the bees contained in the collection of insects belonging to the University of Nebraska. After some preliminary work in the way of assorting and arranging the material at hand, and securing literature with which to do the naming, it was found that the large number of the species belonging to the genus Andrena in its broad sense could only be placed by the aid of some kind of synoptic key or table. Not being able to find such an aid in our entomological literature it was decided to construct one …

A Preliminary Review Of The Birds Of Nebraska With Synopses, Lawrence Bruner, Robert H. Wolcott, Myron H. Swenk

Papers in Ornithology

In 1896, Prof. Bruner published his list entitled "Some Notes on Nebraska Birds." As a working basis for the study of the ornithology of the state it has proven invaluable and it has also been greatly in demand by people not ornithologists, who desired to "know something about our birds." That edition was exhausted some time ago and its author has been frequently urged to publish another. However, the organization of the Nebraska Ornithologists' Union and the development of ornithology in the University has led to such a rapid increase in our knowledge in the past five years that it …

Article Xxii.-A New Genus Of Ground Sloth From The Pleistocene Of Nebraska, Barnum Brown

University of Nebraska State Museum: Mammalogy Papers

This genus is founded on a nearly perfect skull and lower jaw in the American Museum collections (No. 2780), with associated skeletal material including five cervical vertebrae, tibia, fibula, calcaneum, astragalus, lunar, middle digit of manus, and ribs, found by the Expedition of 1897 near Hay Spring, Nebraska. Professor Henry F. Osborn has placed this material in the writer's hands for description.