𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On the Powers on Which the Functions of Life Depend in the More Perfect Animals, and on the Manner in Which These Powers are Associated in Their More Complicated Results.

✍ Scribed by Philip, A. P. W.

Book ID
120129534
Publisher
The Royal Society
Year
1837
Weight
229 KB
Volume
3
Category
Article
ISSN
0365-0855

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πŸ“œ SIMILAR VOLUMES

Report of Committee on National Legislat
Report of Committee on National Legislation,* American Pharmaceutical Association*This report was received and the report and resolutions were adopted. C. L. Eddy said that attention should be called to the growing tendency in the United States toward a bureaucratic form of government. Mr. Eddy referred to a law in New York state of this order which was abolished through the cooperative efforts of pharmacists and physicians. He also referred to a statement made recently in Congress-that "one in fifteen people is an employee of the Government; and these people who hold their jobs are making laws for our damnation.
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Acute and Chronic Toxicity of Veratrum V
Acute and Chronic Toxicity of Veratrum Viride††The Veratrum viride studied was the whole-powdered drug marketed by Irwin, Neisler & Co. under the name, Vertavis. The work reported herein was supported by a grant from this firm. The batch of powder used in these experiments was stated by the manufacturer to have been assayed biologically by the Craw method on Daphnia magna. One Craw unit of the material studied was stated to be 15.6mg. With regard to this assay, Mr. R. O. Craw has been so kind as to allow us to publish a brief explanation: A reference lot of Yerolrum oirid; powder was set-aside as a standard and a 10% w/v aqueous extract was made of this powder. The average median length of life in 50 assays of 1000 daphnia on immersion in the solution was determined to be 2.22 hours. The daphnia were considered dead when the heart was found to be in systolic standstill on microscopic examination. Succeeding lots of powder were assayed and their potency determined by relating the median length of life of daphnia to 2.22 hours, which is one unit. Twenty assays of 10 animals each were used on each lot of powder.‑‑The authors wish to thank Dr. J. F. A.,McManus of the Department of Pathology for a pathologic report on the tissues, and Mr. James Thomas and Mrs. Bobby E. Teague for technical assistance.
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