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Browsing by Subject "Bulletin"

Now showing 1 - 9 of 9
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    Bulletin No. 1. The History of Geological Surveys in Minnesota
    (Minnesota Geological Survey, 1889) Winchell, N.H.
    Describes the enabling legislation and early attempts and problems establishing a geological survey in Minnesota
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    Bulletin No. 10. The Iron-Bearing Rocks of the Mesabi Range in Minnesota
    (Minnesota Geological Survey, 1894) Spurr, J.Edward
    Study of the rocks on the Mesabi Iron Range, Minnesota. In this bulletin the writer has endeavored to add to the knowledge of one of the most perplexing and fascinating fields in American geology. At the same time, some apology must be offered for the incompleteness of the work. Both time and opportunity have been too scanty for a thorough study and analysis of all of the problems which have presented themselves. New modifications of old principles. and new principles, will be found to bave been active in other areas, apart from that especially studied; and, not improbably, in this area itself. Economic geology in these departments is as yet rudimentary, but it is hoped that the main points bere presented will prove sound, and can safely be made the basis for more advanced work.
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    Bulletin No. 2. Preliminary Description of the Peridotytes, Gabbros, Diabases and Andesytes of Minnesota
    (Minnesota Geological Survey, 1887) Wadsworth, M.E.
    It is proposed in the following pages to give a preliminary description of certain types of Minnesota rocks, to serve as a framework for a more complete discussion of the same in the final report. The field relations and to some extent the microscopic characters of the rocks described in the following pages have been given by the state geologist in the annual reports for 1879, 1880, and 1881, and in volume I of the final report. In some cases it will be found that the field relations have led the state geologist to different conclusions concerning the nature of the rocks in question from those adopted by the writer, who has based his views upon the correlation of the microscopic characters of rocks and their field relations, as studied by him elsewhere.
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    Bulletin No. 3. Report on Botanical Work in Minnesota for the Year 1886
    (Minnesota Geological Survey, 1887) Arthur, J.C.; Upham, Warren; Bailey, L.H., Jr.; Holway, W.W.D.; and others
    In more formally opening up the botanical work of the survey it is proposed, in accordance with these views, to emphasize at first two mutually supplementary features, the preservation of a herbarium to serve as a basis for study, and the systematic exploration of the less known parts of the state; at the same time data will be gathered, as far as possible, upon all questions of interest. connected with the state flora, which will be embodied in reports as occasion requires. It is not intended to interrupt, the general enumeration of plants already referred to, a part of the survey originated and prosecuted by Mr. Upham, with the co-operation of many local collectors, including several specially enthusiastic students of field botany. The locality selected for exploration for the season of 1886 was Vermilion lake and vicinity, a region lying between the North shore of lake Superior and the International Boundry.
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    Bulletin No. 5. Natural Gas in Minnesota
    (Minnesota Geological Survey, 1889) Winchell, N.H.
    The great discoveries of gas in Pennsylvania and more recently in Ohio and Indiana, and in other places in the United States, have had their natural effect in Minnesota. They have caused a feverish and sometimes an expressed feeling of unrest, and of curiosity to know what would be the result in case a careful probing of the earth's crust were undertaken. They have caused a re·examination of old records, and a restatement of all the nearly forgotten incidents which occurred years ago which could be interpreted as indications of natural gas at numerous places in the state. They have sharpened the observation of all well-drillers and others who in any way could be considered to be in situations such as might reveal evidences of escaping gas. The human eyesight, the sense of smell, the love of lucre, the knowledge of geology, the ignorance of all geologists, have received a sudden and very general popular increment. These have had their influence on our Legislature. This is all very natural and not at all blameworthy. The demand for public expenditure in search for the hidden resources of the state, when the commonwealth in general is interested in the enterprise, is a demand that should be heeded by legislators. It is one of the distinguishing marks of American civilization that the people are willing to tax themselves for the promotion of public improvements and for scientific research. The people in general are more intimately acquainted with as well as more profoundly interested in the prosecution of scientific research, and the economic results of such research, than in other civilized countries.
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    Bulletin No. 6. Iron Ores of Minnesota
    (Minnesota Geological Survey, 1891) Winchell, N.H.; Winchell, H.V.
    We have attempted to give, in this bulletin, such information concerning the iron ores of Minnesota as might be wanted by the explorer, the miner, the geologist and the citizen of the state. There has been a great demand recently for such a discussion of the iron ores of the Northwest. As the discovery of new mining grounds has, year after year, extended the interest in iron mining among a greater number of individuals and corporations who naturally look to the official survey for information and guidance, so have the number and complexity of the problems involved increased. We have not essayed the settlement of all the scientific questions that have arisen through this extension of the field of observation. We have simply collected the new facts as we have learned them and have made an initial effort to group all of them, both old and new, under a classification intended to make them indicate some general principles. Our results are not wholly in accord with those of some of our predecessors-as theirs were not with theirs. We would have been glad to have taken more time for further field and laboratory work. It is evident, however, that we should never reach perfection. It was equally evident that justice to a large and expectant constituency required the preparation of a report on the iron ores, however far it might fall short of rendering justice to the subject. It is only through successive partial studies, and the publication of the incompleted results that some additions are made to our knowledge of the geology of the ores of iron. Our contribution to that fund of knowledge will go with others, both earlier and later, to enable some fortunate future geologist to prepare an exposition that will be both thorough and complete. We shall be satisfied if we may be able to add a small quantum to that end.
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    Bulletin No. 7. Mammals of Minnesota
    (Minnesota Geological Survey, 1892) Herrick, C.L.
    The manuscript and plates for a final report upon the mammals of Minnesota were turned over to the Survey in 1885, with the expectation that the work would be speedily issued as part of a quarto volume of the series of final reports. Circumstances with which the writer is unacquainted have delayed the publication over six years and in the meantime much work has been done in all branches of biology, and the state has been carefully surveyed by the United States agents. Much of whatever may have had any value as an original contribution to science has lapsed and much of the remainder has been rendered unnecessary by recent publication. This is especially true of bibliographical material. When, however, the publication was finally ordered and no opportunity was afforded for further field work, it seemed best to adapt the manuscript for the purpose by the omission of much which could not be edited satisfactorily under the circumstances, and, separating the more general from the technical portions, to issue these in the form of two bulletins, uniform with the series already established by the Survey. The present installment, therefore, contains the descriptive and popular portion, with such illustrations as may serve to assist the amateur. The second part will be devoted to the materials collected upon the anatomy, especially the myology and osteology of the mammals of Minnesota. C. L. HERRICK, Univ. of Cincinnati.
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    Bulletin No. 8. I. The Anorthosytes of the Minnesota Coast of Lake Superior; II. The Laccolitic Sills of the North-west coast of Lake Superior
    (Minnesota Geological Survey, 1893) Lawson, Andrew
    Among the problems which were named in instructions given to Dr. Lawson when he entered upon the season's work for the Minnesota. Geological and Natural History Survey along the northern coast of lake Superior, one was the following. To determine if possible the date and stratigraphic relations of the gabbro invasion. How well he has answered that question his report on the "Anorthosytes of the Minnesota coast of lake Superior" bears ample testimony. In order, however, that the important bearing which his results have on the geology of the northeastern part of the state, may be made more apparent, it is deemed best to preface this publication with a short exposition of the history of the investigation, and a few paragraphs on the extent of the gabbro rocks and on the significance of the term gabbro.
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    Worker-Student Alliance Bulletin, Number 5
    (1971) Students for a Democratic Society