Examinations of the water supplies and inland waters of Massachusetts. 1887-1890. Introduction. I. Examinations of water supplies and rivers. 2. Drown, T.M. The chemical examination of waters and the interpretation of analyses. 3. Parker, G.H. Report upon the organisms, excepting the bacteria, found in the waters of the state, July, 1887, to June, 1889. 4. Stearns, F.P. Summary of water-supply statistics; also records of rainfall, flow of streams, and temperatures of air and water. 5. A classification of the drinking waters of the state. 6. Stearns, F.P., and Drown, T.M. Special topics relating to the quality of public water supplies. 7. Stearns, F.P. The pollution and self-purification of streams. Vol. 2. Experimental investigations upon the purification of sewage ... , and upon the intermittent filtration of water, Lawrence, Mass., 1888-1890

Examinations of the water supplies and inland waters of Massachusetts. 1887-1890. Introduction. I. Examinations of water supplies and rivers. 2. Drown, T.M. The chemical examination of waters and the interpretation of analyses. 3. Parker, G.H. Report upon the organisms, excepting the bacteria, found in the waters of the state, July, 1887, to June, 1889. 4. Stearns, F.P. Summary of water-supply statistics; also records of rainfall, flow of streams, and temperatures of air and water. 5. A classification of the drinking waters of the state. 6. Stearns, F.P., and Drown, T.M. Special topics relating to the quality of public water supplies. 7. Stearns, F.P. The pollution and self-purification of streams. Vol. 2. Experimental investigations upon the purification of sewage ... , and upon the intermittent filtration of water, Lawrence, Mass., 1888-1890 PDF

Author: Massachusetts. State Board of Health

Publisher:

Published: 1890

Total Pages: 894

ISBN-13:

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The Data of Geochemistry

The Data of Geochemistry PDF

Author: Frank Wigglesworth Clarke

Publisher: Legare Street Press

Published: 2022-10-27

Total Pages: 0

ISBN-13: 9781017142204

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Marine Insects

Marine Insects PDF

Author: Lanna Cheng

Publisher: North-Holland

Published: 1976

Total Pages: 606

ISBN-13:

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This is the first exhaustive review of literature on marine insects, which are defined in this volume as those that spend at least part of their life in association with the marine environment. Not only are true insects, such as the Collembola and insect parasites of marine birds and mammals, considered, but also other kinds of intertidal air-breathing arthropods, notably spiders, scorpions, mites, centipedes and millipedes, which live and feed with, or even on, the insects of marine habitats. The chapters, written by leading authorities, are divided into two sections, the first treating primarily ecological aspects, the second dealing with major groups of insects in marine environments.

Diseases of Wild Waterfowl

Diseases of Wild Waterfowl PDF

Author: Gary A. Wobeser

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 318

ISBN-13: 1461559510

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Management of wild waterfowl has become increasingly intensive. Many birds now hatch in managed nesting cover or in artificial nesting structures, use man-made wetlands, and winter on crowded refuges while consuming a grain diet The water they use is often limited in supply and may contain residues from its many prior users. Unfortunately, intensified management often results in new problems, among which disease is important There are many similarities between the current form of management used for some waterfowl and that used in domestic animals. In both, the objective is to maintain a healthy, productive population. Dealing with health problems in waterfowl will benefit from combining the skills of veterinary medicine and wildlife ecology. Revisiting this book after 15 years allowed me to consider changes at the interface between the two disciplines. Veterinary medicine traditionally has been concerned with the individual and with treating sick animals, while the ecologist is concerned with populations and the manager has limited interest in treating sick birds. During this period there has been a marked increase in awareness among veterinarians that they have a responsibility in wildlife and conservation biology. Curricula of many veterinary colleges now include material on non-domestic animals and attempt to put disease in an ecological context. Also during this time, waterfowl managers have become more aware of disease as a factor in population biology and there are early attempts to put numbers to "disease" in models of continental waterfowl populations.

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