E-text prepared by Ronald Calvin Huber while serving as Penobscot Bay Watch, Rockland, Maine, with technical assistance from Joseph E. Loewenstein, M.D. Note: Project Gutenberg also has an HTML version of this file which includes the original illustrations and tables. See 17475-h.htm or 17475-h.zip: (https://www.gutenberg.org/dirs/1/7/4/7/17475/17475-h/17475-h.htm) or (https://www.gutenberg.org/dirs/1/7/4/7/17475/17475-h.zip)…
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