Life Sciences Commons^™

On The Color-Vocabulary Of Children, Harry K. Wolfe

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

The very interesting investigations and discussions on the development of the color-sense in man, during historical times, have indirectly shown the deficiency of ancient languages in words for simple sensations. Even if the validity of the inference drawn by the original investigators is more than doubtful, their labor has not been in vain. In seeking evidence for the recent evolution of the sense of color, Gladstone, Geiger, and others have shown that few words denoting color are used in the earliest literature of several nations. Furthermore, most of the color-words found denote shades of red, orange, or yellow. Violet is …

A Nematode Formula, Nathan Augustus Cobb

Harold W. Manter Laboratory of Parasitology: Faculty Publications

I hope by the aid of this new formula to be able to describe, even without the aid of figures, at least such species as belong to already well known genera, so accurately as to leave little to be desired, and yet so briefly as to leave space for the full discussion of the important relations existing between these worms and diseases of plants.

The Corn-Stalk Disease In Cattle, Frank S. Billings

School of Veterinary and Biomedical Sciences: Faculty Publications

MORPHO-BIOLOGICAL CORRESPONDENCE BETWEEN TWO OR MORE MICRO- ETIOLOGICAL ORGANISMS NOT SUFFICIENT GROUNDS FOR PRONOUNCING THE DISEASES WITH WHICH THEY ARE CONNECTED IDENTICAL. The details of this discussion will be found in my report on the swine-plague. It is necessary, however, to touch upon the essential points here also. As was there shown, Hueppe asserts that the European diseases previously mentioned as being caused by a member of this group of belted, ovoid germs, viz., the “ Huhne Cholera, Kaninchen Septikasmie, und Wild Seuche ’ ’ are all one and the same disease, because their micro-etiological organisms have the same form, …

Keratitis Contagiosa In Cattle, Frank S. Billings

School of Veterinary and Biomedical Sciences: Faculty Publications

This is not a new disease by any means, so far as the United States are concerned, nevertheless I have been unable to find any description of it in the literature at my command. While new to myself until the past Summer, there have been quite a number of reports of its existence, and complaints about it, from farmers and breeders of cattle in some of the live-stock journals of our western States. Under these circumstances, it would seem that a description of its clinical phenomena and gross pathological lesions may not be without scientific interest to the opthalmologist, and …

Inoculation—Vaccination, Frank S. Billings

School of Veterinary and Biomedical Sciences: Faculty Publications

When one comes to discuss this question with the members of the profession as he casually meets them, he is often surprised to find how uncertain and clouded the prevailing ideas are upon the subject. In fact, the majority of physicians do not seem to have any clear conception of the act connected with the words “ inoculation ” and “ vaccination.”

On The Transparency Of The Ether, Dewitt B. Brace

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

Whether light coming from the remotest members of the visible universe has not been enfeebled to a greater extent than the variation of distance would require, is still an open question. If there be absorption at all, it must be exceedingly small through spaces comparable with the dimensions of the solar system, in order that the light of these distant bodies may be perceived.

It is proposed in the present paper to investigate the phenomena which would occur if the energy were absorbed by the ether itself through frictional forces or imperfect elasticity. If absorption does take place, there must …

Report On Nebraska Insects, Lawrence Bruner

Department of Entomology: Faculty Publications

Lincoln, Nebr. , September 19, 1888. Sir: Aside from a very limited number of species such as are always more or less injurious, the insect depredations in the State of Nebraska have been unusually few and light during the present year. Among these latter I will notice in brief the following as having attracted my attention at the time of their occurrence: Plum weevils (Conotrachelus nenuphar and Coccotorus scutellaria), the Codling Moth (Carpoeapsa pomonella), Cabbage butterflies (Pieris protodiee and P. rapai), the Army-worm (Leucania unipuncta), the Large Willow Saw-fly (Cimbex americana …

Report On Nebraska Insects, Lawrence Bruner

United States Department of Agriculture Wildlife Services: Staff Publications

Sir: Aside from a very limited number of species such as are always more or less injurious, the insect depredations in the State of Nebraska have been unusually few and light during the present year. Among these latter I will notice in brief the following as having attracted my attention at the time of their occurrence:

Plum weevils (Conotrachelus nenuphar and Coccotorus scutellaria), the Codling Moth (Carpoeapsa pomonella), Cabbage butterflies ( Pieris protodice and P. rapai), the Army-worm (Leucania unipuncta), the Large Willow Saw-fly (Cimbex americana), the Box-elder Aphid (Chaitophorus …

A Meeting-Place For Two Floras, Charles E. Bessey

Papers in Systematics and Biological Diversity

About half-way across the northern part of Nebraska, a few miles east of the 100th meridian, there is a very interesting botanical locality. A small stream starts at a point about twenty or twenty-five miles south of the Niobrara River, and runs northward through a deep and winding canyon to the river mentioned. The surrounding country is absolutely treeless. and the surface is in many places thrown up into rounded hills of what must have once been drifting sand. The canyon sides are very abrupt, and they descend in many places fully two hundred feet before the bottom is reached. …

The Life History Of The Liver-Fluke (Fasciola Hepatica), A. P. Thomas

Harold W. Manter Laboratory of Parasitology: Library Materials

IT has been known from very early times that the liver-rot of various herbivorous mammals is a parasitic disease due to the presence of very numerous flukes in the liver of the affected animals. Amongst our domesticated animals the sheep is by far the most frequent victim. The fluke disease is always common in certain districts in England and in many parts of the world; but in consequence of a succession of wet seasons there was a serious outbreak of it in the winter 1879-1880, and it is estimated that in the United Kingdom 3,000,000 sheep were then destroyed by …

The Asparagus For Histological Study, Charles E. Bessey

Papers in Systematics and Biological Diversity

I have for several years been wanting a good Monocotyledon for histological study in the botanical laboratory, one which should be for its sub class what the pumpkin is for the dicotyledons. The indian corn, which is commonly used, is too difficult, and too greatly specialized a type, exhibiting as it does the peculiar nodal structure of the stem of the Grarninex, rather than the structure of the stem of monocotyledons in general. A good representative stem. and one which can be obtained everywhere in good condition, from early spring until the end of the season, is the asparagus. …

A Single Dendrometer, Charles E. Bessey

Papers in Systematics and Biological Diversity

A dendrometer is constructed essentially as follows: A tube, t, about two inches in diameter, and nearly or quite a foot in length, is supported in a vertical position by two pins, pp, near its upper end; and these pins rest upon a ring, r forming a simple gimbal which allows the tube by its own weight to assume an exactly vertical position. In the lower end of the tube two mirrors, A and B, are placed side by side, each occupying one half of the section of the diameter of the tube. One of these mirrors …

A Sketch Of The Progress Of Botany In The United States In The Year 1879, Charles E. Bessey

Papers in Systematics and Biological Diversity

In this department the observations of the botanists of this country, as shown by their published papers, were directed mainly to the reproductive organs and their functions ; and with one or two exceptions the papers were short, involving but a few quickly-made observations. Little or no world was done in micro-anatomy (histology) and proper physiology.

While we may regret that so much of the field has been so sadly neglected in our country, we should remember, that as a rule our botanists are overloaded with other duties which render it often impossible for them to command the time for …

A Sketch Of The Progress Of Botany In The United States In 1880, Charles E. Bessey

Papers in Systematics and Biological Diversity

A valuable paper appeared in the Botanical Gazette for November, on "The Stem of the Pumpkin for illustrating Plant Histology," by J. C. Arthur. The disposition of the various tissues, with notes upon some of their peculiarities, and suggestions as to the best methods of preparing them for observation, make up the bulk of the paper.. Finally a classified list of the tissues is given.

The Supposed Dimorphism Of Lithospermum Longiflorum, Charles E. Bessey

Papers in Systematics and Biological Diversity

The plant under consideration is a common herbaceous perennial of the prairies and great plains of North America. In the latter part of April and during the month of May it produces flowers with bright yellow salver-shaped (hypocraterimorphous) corollas, whose tubes are about thirty mm. (one and one-fifth inch) long, and from two to three mm. in diameter. About the first of June, in central Iowa, these large flowers suddenly disappear, and from this time forward until the autumn frosts, they produce only small cleistogamous flowers. The corolla lobes of the latter cohere somewhat, and remain closed, and …

Notes On The Ornithology Of Southern Texas, James C. Merrill

Papers in Ornithology

BEING A LIST OF BIRDS OBSERVED IN THE VICINITY OF FORT BROWN, TEXAS, FROM FEBRUARY, 1876, TO JUNE, 1878.

The post of Fort Brown, Texas, in the immediate vicinity of which most of the following observations were made, is at the extreme southern point of the State, in latitude 25° 53' 16", longitude 97° 13'. It adjoins the town of Brownsville, on the left bank of the Rio Grande, and across the river is Matamoras, in the Mexican State of Tamaulipas. The nearest part of the Gulf coast is about eighteen miles distant. The surrounding country is level, and mostly …

Sensitive Stamens In Portulaca, Charles E. Bessey

Papers in Systematics and Biological Diversity

Two years ago my attention was first called to the sensitiveness of the stamens of Portulaca grandiflora, by observing a peculiar motion in them, while a small wild bee was engaged in gathering honey, and perhaps pollen, from the flowers. Upon trial I found that I could, by touching the stamens, make them move through quite considerable arcs of circles. I pursued the investigation somewhat farther at the time, but on account of a pressure of work was compelled to drop it. Last year I again made some examinations which confirmed my previous observations, but declined calling special attention …

Versuch Einer Naturgeschichte Der Eingeweidewūrmer Thierischer Körper, Johann August Ephraim Goeze

Harold W. Manter Laboratory of Parasitology: Library Materials

Original version of Versuch einer Naturgeschichte der Eingeweidewūrmer thierischer Körper [= Attempt at a natural history of the intestinal worms of animal bodies] by Johann August Ephraim Goeze, published by P. Pape in Leipzig in 1787, about tapeworms, also known as cestodes (Class Cestoda).

Digitized by the Internet Archive for the Wellcome Library, London, United Kingdom in 2017.

De Bestiis Marinis Or, The Beasts Of The Sea, Georg Wilhelm Steller

Zea E-Books in American Studies

Steller’s classic work, published in Latin in 1751 and in German in 1753, contains the only scientific description from life of the Steller’s sea cow (Hydrodamalis gigas), as well as the first scientific descriptions of the fur seal or “sea bear” (Callorhinus ursinus), Steller’s sea lion (Eumetopias jubatus), and the sea otter (Enhydra lutris).

Steller’s sea cow was a sirenian, or manatee, inhabiting the North Pacific Ocean and Bering Sea. It was first discovered by Europeans in 1741 and rendered extinct by 1768. It was a 30-foot long, plant-eating aquatic mammal, weighing …

Replicating Single-Cycle Adenovirus Vectors Generate Amplified Influenza Vaccine Responses, Catherine M. Crosby, William E. Matchett, Stephanie S. Anguiano-Zarate, Christopher A. Parks, Eric A. Weaver, Larry R. Pease, Richard J. Webby, Michael A. Barry

Nebraska Center for Virology: Faculty Publications

Head-to-head comparisons of conventional influenza vaccines with adenovirus (Ad) gene-based vaccines demonstrated that these viral vectors can mediate more potent protection against influenza virus infection in animal models. In most cases, Ad vaccines are engineered to be replication-defective (RD-Ad) vectors. In contrast, replication-competent Ad (RC-Ad) vaccines are markedly more potent but risk causing adenovirus diseases in vaccine recipients and health care workers. To harness antigen gene replication but avoid production of infectious virions, we developed “single-cycle” adenovirus (SC-Ad) vectors. Previous work demonstrated that SC-Ads amplify transgene expression 100-fold and produce markedly stronger and more persistent immune responses than RD-Ad vectors …