Dates and locations in the headings of letters usually were on the same line in the original book, but have been placed on separate lines here.
Footnotes, originally at the bottoms of pages, have been collected, resequenced, and placed just above the Index.
Cover created by Transcriber and placed into the Public Domain.
The Index was not checked for proper alphabetization or correct page references.
[Page 197]: The correct title of “The Power of Movements in Plants” is “The Power of Movement in Plants.”