Transcriber's Notes:Variations in spelling, punctuation and hyphenation have been retained except in obvious cases of typographical error."Haeckel" and "Hæckel" were used interchangeably and have been standardized to "Haeckel".Images interrupting paragraphs have been moved.Footnotes have been moved to end of document.Cover image compiled by Tom Cosmas and is placed in the Public Domain.
Transcriber's Notes:
Variations in spelling, punctuation and hyphenation have been retained except in obvious cases of typographical error.
"Haeckel" and "Hæckel" were used interchangeably and have been standardized to "Haeckel".
Images interrupting paragraphs have been moved.
Footnotes have been moved to end of document.
Cover image compiled by Tom Cosmas and is placed in the Public Domain.