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Zoology

Studies from the Zoological Laboratory: The University of Nebraska

Series

1895

Articles 1 - 8 of 8

Full-Text Articles in Animal Sciences

The Parasitic Worms Of Man And The Domestic Animals, Henry B. Ward Aug 1895

The Parasitic Worms Of Man And The Domestic Animals, Henry B. Ward

Studies from the Zoological Laboratory: The University of Nebraska

This article has been written for the general information of those engaged either on a large or on a small scale in stock raising in our own state particularly, and, while not intended to be a complete treatise on the subject, it includes references to those parasites which seem to be the most important or most likely to be found within our borders. The parasites of cattle, sheep, horse, hog, dog, cat, and man, which have many species in common, form the subject of this paper. The parasites of domestic fowl are, however, quite different from those considered here and …


On Distoma Felineum Riv. In The United States And On The Value Of Measurements In Specific Determinations Among The Distomes, Henry B. Ward Aug 1895

On Distoma Felineum Riv. In The United States And On The Value Of Measurements In Specific Determinations Among The Distomes, Henry B. Ward

Studies from the Zoological Laboratory: The University of Nebraska

The distomes of cats have received special attention of late in the two papers of Braun (94) and Stiles and Hassall (94). The latter authors give a most admirable account of our present knowledge of a dozen allied forms, and record two, D. albidum and D. complexum n. sp., as found in cats in the United States. During the past year I have examined the cats killed at this laboratory, and have found neither of the forms recorded from the east. Distoma felineum, however, which Stiles and Hassall did not find. and which has not been reported hitherto for …


A New Method For The Quantitative Determination Of Plankton Hauls, Henry B. Ward Aug 1895

A New Method For The Quantitative Determination Of Plankton Hauls, Henry B. Ward

Studies from the Zoological Laboratory: The University of Nebraska

Only two methods of estimating the quantity of plankton obtained in a haul of the vertical net are known to me. These two may be called the volumetric and the gravimetric. Both have been used by observers in various parts of the world, but so far as I know have never been comparatively tested in order to ascertain the relative value of results obtained by the two. The experience of the past year has shown some disadvantages in the first method, while the second has certain evident objections which rendered its employment in this case out of the question. In …


The Asiatic Lung-Distome In The United States, Henry B. Ward Mar 1895

The Asiatic Lung-Distome In The United States, Henry B. Ward

Studies from the Zoological Laboratory: The University of Nebraska

In 1893 I reported the occurrence of the Asiatic distome in the lungs of a cat examined in Ann Arbor, Mich. This was the first reported find of this species on this continent, and the possibility of its being a permanent guest in this country was so serious that I urged a careful examination of all cases of lung-parasites in the domestic animals, with a view to ascertaining whether this might be an isolated instance, or whether the parasite was actually established within our land, for it is true that the Chinese, among whom the parasite is very common, regard …


On Distoma Felineum Riv. In The United States And On The Value Of Measurements In Specific Determinations Among The Distomes (1895), Henry B. Ward Jan 1895

On Distoma Felineum Riv. In The United States And On The Value Of Measurements In Specific Determinations Among The Distomes (1895), Henry B. Ward

Studies from the Zoological Laboratory: The University of Nebraska

The distomes of cats have received special attention of late in the two papers of Braun (94) and stiles and Hassall (94). The latter authors give a most admirable account of our present knowledge of a dozen allied forms, and record two, D. albidum and D. complexum n. sp., as found in cats in the United States. During the past year I have examined the cats killed at this laboratory, and have found neither of the forms recorded from the east. Distoma felineum, however, which Stiles and Hassall did not find, and which has not been reported hitherto for the …


Report Of The Zoologist, Henry B. Ward Jan 1895

Report Of The Zoologist, Henry B. Ward

Studies from the Zoological Laboratory: The University of Nebraska

In the report of last year was given a full summary of the present state of our knowledge concerning the parasites of man and the domestic animals. It is the intention of the following pages to review the parasitic fauna of the state of Nebraska so far as it is definitely determined, and also to include a list of some species reported but not accurately identified. The second section of this report presents a brief description of some important parasites not included in the group of worms, and hence not mentioned in last year's report. I shall omit all parasites, …


A Second Case Of Distoma Westermanni In The United States, Henry B. Ward Jan 1895

A Second Case Of Distoma Westermanni In The United States, Henry B. Ward

Studies from the Zoological Laboratory: The University of Nebraska

In a previous number of the Veterinary Magazine, I have given an account of the discovery of Distoma westermanni in the lungs of a cat at Ann Arbor. The importance of the discovery within our country of this dangerous parasite. so common in the East, was emphasized, and an appeal was made for more information as to the presence of lung distomes in various hosts in the United States since, as stated (p. 357), “there is no need of emphasizing the importance of obtaining accurate knowledge as to the extent of the infection among animals, and even man;” . …


The Food Supply Of The Fish In The Great Lakes, Henry B. Ward Jan 1895

The Food Supply Of The Fish In The Great Lakes, Henry B. Ward

Studies from the Zoological Laboratory: The University of Nebraska

When the early settlers made their homes along the shores of the Great Lakes, the waters of these inland seas teemed with fish. A cheap and apparently inexhaustible supply of food lay within easy reach, and they drew from it unstinted, nor was it strange that, with the increasing population and ever-widening means of communication, delicacies so tempting as the whitefish and lake trout were eagerly sought after in the markets of the neighboring cities, and that the ingenuity of generations of fishing folk was taxed to invent means of securing the fish-until finally, in the face of a growing …