1,721,127 research outputs found

    An experiment in diffusion, water pollution, and bioassay using polyethylene film as a semipermeable membrane

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    Article written by Cal R. Fremling detailing step-by-step instructions for a basic classroom laboratory experiment. The article includes photographs of students performing steps of the procedure, discussion of data and possible conclusions, and other possible applications using the materials and procedure. Fremling is credited as: Winona State College, Winona, Minnesota. Abstract: A novel experiment in aquatic biology employing polyethylene bags can be utilized by large groups. The author is Professor of Biology at Winona. Article reprinted from The American Biology Teacher, volume 30, number 6, September 1968. 5 pages. Part of the Cal R. Fremling Collection.https://openriver.winona.edu/calfremlingpapers/1020/thumbnail.jp

    Documentation of a mass emergence of Hexagenia mayflies from the Upper Mississippi River

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    Article written by Calvin R. Fremling regarding a specific mayfly emergence on July 8, 1966 at Winona, Minnesota. Includes locations around the city such as Levee Park (emergence resulted in a shutdown of carnival equipment operating for Steamboat Days) and the John A. Latsch Wagon Bridge. Figure 1 shows a heavy swarm of mayflies covering the bridge and the author\u27s car. Summary: This report documents a mass Hexagenia mayfly emergence from the Upper Mississippi River, so that others may know of the magnitude of the phenomenon if Hexagenia populations are further reduced by pollution along the Upper Mississippi River. Fremling is credited as: Winona State College, Winona, Minnesota. Article reprinted from Transactions of the American Fisheries Society, volume 97, number 3, 19 July 1968. 5 pages. Part of the Cal R. Fremling Collection.https://openriver.winona.edu/calfremlingpapers/1021/thumbnail.jp

    Immortal River document research file

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    Document file of research items for Cal Fremling\u27s book Immortal River. Contents include: articles, book chapters, pamphlets, chronologies, maps, correspondence, forms, photographs, and drawings. Almost all items are reprints or photocopies. One photograph card (carte de visite) may date to 1890s. Items vary in size. 48 pages. Part of the Cal R. Fremling collection.https://openriver.winona.edu/calfremlingpapers/1005/thumbnail.jp

    Proceedings from the Formaldehyde Symposium

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    Print version of the Formaldehyde Symposium, held on July 18, 1982 as part of the annual meeting of the American Association of Veterinary Anatomists. Speakers included: Dr. Ted A. Loomis, Professor of Pharmacology and Toxicology, University of Washington; Dr. Harry J. Beaulieu, Assistant Professor of Industrial Hygiene and Environmental Health, Colorado State University; Dr. Michael J. Blackwell, Toxicologist formerly with NIOSH; Mr. Bill Gabriel, Head of Bios Mount Division of Carolina Biological Supply Co; Dr. Calvin R. Fremling, Professor of Biology, Winona State University and Pamela J. Park. Esq., Staff Attorney, Brigham Young University. Fremling\u27s contribution is titled: Alternatives to Formaldehyde. From the introduction and opening remarks: In this Symposium we will attempt to provide for the members as much information as possible about formaldehyde. The program is not intended to promote or debate any particular issue. We recognize that differences of opinion and experience will be held. In 1859, Alexander Butlerov prepared a heretofore unknown Formyl Aldehyde as a product of an attempted synthesis of methylene glycol. Butlerov published an accurate account of formaldehyde solution, formaldehyde gas and formaldehyde polymer. It has been estimated that the production of formaldehyde in the United States in 1978 was 6 billion, 300 million pounds. Formaldehyde is colorless gas having pungent odor. It is commercially available as an aqueous solution having about 37% by weight of the gas in water. This solution, known as formalin 100% or formalin 40, usually contains 10—15% methylene oxide to prevent polymerization. Our highly industrial and technical society has discovered many non-medical uses for formaldehyde. It seems that we are surrounded by materials which require formaldehyde for their production. These include: plastics, paper and brewed beverages, smoked bacon and fish, mirrors, comestics, cameras, dyed artificial silk, textiles and starch. The formaldehyde present in some building materials is receiving attention as a possible health hazard to dwelling occupants. The medical profession has been equally ingenious at discovering uses for formaldehyde and formaldehyde by-products. It has been used as a general disinfectant, to prevent excessive sweating in the treatment of athletes foot and as a urinary antiseptic. It is used in the manufacture of surgical sponges, temporary skin replacement, aortic graft prostheses, vaccines, antibiotics, vitamins, and other drugs. The use of formaldehyde with which we are most directly concerned today is as a fixative. Published/printed by Reports of the World Association of Veterinary Anatomists and other pertinent organizations, compiled and edited by Paul F. Rumph. 15 pages. Part of the Cal R. Fremling Collection.https://openriver.winona.edu/calfremlingpapers/1029/thumbnail.jp

    Marsh and dredging plan, section I

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    Report titled: A plan for industrial park creation, lake dredging, and wetland restoration at Winona, Minnesota. Report timeline (pages 25-28) suggests it was drafted concurrently with Fremling and Mundahl\u27s proposal to LCMR (Legislative Commission on Minnesota Resources). Folder titled Marsh etc. Section I. 29 pages. Part of the Cal R. Fremling Collection.https://openriver.winona.edu/calfremlingpapers/1055/thumbnail.jp

    Lake Winona dredging documents

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    Folder of documents for dredging of Lake Winona, including: - Report and data created by Twin City Testing Corporation for Winona Public Works, to analyze Lake Winona sediments for PCBs and heavy metals - Handwritten meeting notes, attendance, and contact information - Outline/plan titled Dredging Lake Winona and Filling 96 acres in Riverbend Industrial Park Also included is correspondence with David Ballman of the U.S. Army Corps of Engineers, and a Star Tribune news clipping concerning wetlands rules at the federal government level. 14 pages. Part of the Cal R. Fremling Collection.https://openriver.winona.edu/calfremlingpapers/1088/thumbnail.jp

    Polander Lake and Islands

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    Folder of plans, color photographs, and correspondence regarding the Corps of Engineers project to rehabilitate Polander Lake (or Pollander Lake) and construct islands. Correspondents include Fremling and Colonel Richard W. Craig. 10 pages. Part of the Cal R. Fremling Collection.https://openriver.winona.edu/calfremlingpapers/1079/thumbnail.jp

    Cozumel 1977 slides

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    Set of 48 color slides in 1 box labeled Good Cozumel 1977. Part of the Cal R. Fremling collection. Slides are unlabeled and not numbered consecutively. Exact location and creation dates are unknown. Slides show Fremling trip to Cozumel. Subjects include: underwater shots of tropical fish, sea urchins, coral, and plant life, SCUBA divers and snorkelers, underwater wrecks, local livestock, beaches, boats, and historical ruins. Known slide print date (for most of slides) is January 1978.https://openriver.winona.edu/calfremlingslidesall/1027/thumbnail.jp

    Dredging services correspondence

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    Correspondence and resolution concerning the dredging of Lake Winona. Folder titled: Marsh supporting letters notes & plans. Includes a letter from Eric B. Sorenson (City Manager, Winona) to Darrell Krueger (President, WSU) requesting services of Fremling to work with Robert Bollant (Director, Winona Public Works) on preparing a dredging mitigation plan. Also included is a resolution of the plan signed by Mayor Tom Slaggie. 2 pages. Part of the Cal R. Fremling Collection.https://openriver.winona.edu/calfremlingpapers/1049/thumbnail.jp

    Gilmore Valley Bergler\u27s Hill slides

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    Set of 9 color slides labeled Gilmore V. Bergler Goat prairie. Part of the Cal R. Fremling collection. Slides are mostly unlabeled and not numbered consecutively. Slides show various angles of Bergler\u27s Hill and farmland in Gilmore Valley, Winona. Slide print date is 1974-1976. Originally in one box.https://openriver.winona.edu/calfremlingphotographs/1044/thumbnail.jp
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