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The APS Journal Legacy Content is the corpus of 100 years of historical scientific research from the American Physiological Society research journals. This package goes back to the first issue of each of the APS journals including the American Journal of Physiology, first published in 1898. The full text scanned images of the printed pages are easily searchable. Downloads quickly in PDF format.

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Materials and MethodsComplete botanical descriptions and the official grades of the various lots of prairie hay used in these experiments were not available. The hay was produced in the local area. It was composed largely of Little and Big Bluestem, with smaller amounts of less common grasses and some weeds. The different lots of hay varied in quality as would be expected of hay cut under favorable and unfavorable conditions in different seasons and in different years. The cottonseed meal which was fed as a supplement to the hay in