The punctuation in the index was inconsistent, all semi-colons in listings for page numbers have been changed into commas, they are not specially mentioned/marked in the list of changes. Subentries are in general separated by semi-colons, these have been added or changed from other punctuation marks silently. Sub-subentries are in general separated by commas, these have been added or changed from other punctuation marks silently. Atropin and atropine have been retained in both versions in this project. Table A in footnote [1] contains a potential mathematical error, the 2nd column (Expectation of Life 1879-81), row (Ages) 40 shows the value 23.0, it should be 23.9 to add up correctly in the 4th column (Gain or Loss). The original value (23.0) has been retained. Footnote [2] "also Doerr, "Allergie und Anaphylaxis," in Kolle" is cited often as "also Doerr, "Allergie und Anaphylaxie," in Kolle". It has been retained in the version printed in the book for authenticity reasons. Margarin (pages 16 and 112) is in general spelled margarine, it has been retained in this book for reasons of authenticity. Maratti-oil (pages 16 and 112) is in general known as moratti-oil, it has been retained in this book for reasons of authenticity. Hydrocarpus (pages 16 and 111) is in general known as Hydnocarpus, it has been retained in this book for reasons of authenticity. Amanita caesaria (pages 18, 20, and 109) is also known as Amanita caesarea but retained for this project in the first form. Muscarin (pages 20, 21, 22, and 112) is in general spelled muscarine, it has been retained in this book for reasons of authenticity. Zygadenus (pages 25 and 115) is in general known as Zigadenus, it has been retained in this book for reasons of authenticity. The typhoid carrier in New York Mary Mallon (aka Typhoid Mary) mentioned on page 45 as well as on page 112 is spelled in this book as Mary Malloy, the original of the book has been retained. Other than the corrections listed below, printer's inconsistencies in spelling, punctuation, hyphenation, and ligature usage have been retained. The following misprints have been corrected: added 0 to +.89 in table B footnote [1], second to last value in 4th column. changed "la face vulteuse" into "la face vultueuse" page 21 changed "Paneolus papilionaceus" into "Panaeolus papilionaceus" page 21 the italic mark-up for "XLV" in "f. öffentl. Ges., XLV" has been removed, footnote [69] changed "R. Trommsdorff, L. Rajchmann, and A. E. Porter," into "R. Trommsdorff, L. Rajchman, and A. E. Porter," footnote [82] changed "Paneolus papilionaceus" into "Panaeolus papilionaceus" page 113