Page 64, ... se recontrant d’une manière diffuse ...: possibly an error for ... se rencontrant d’une manière diffuse ....

Page 70, bottom row of Table IX: possibly the first column should read Average age at death.

Page 220, Literature reference [5]: there is no footnote marker in the text, and therefore no back-link to the text.

Changes made

Tables and illustrations have been moved out of text paragraphs. Some of the tables have been re-arranged or split for legibility; ditto marks and the word Ditto have in several places been replaced with the dittoed text.

Some obvious minor typographical and punctuation errors have been corrected silently.

Page 3: ... mascicot and litharge ... changed to ... massicot and litharge ....

Page 47, Table III bottom part: value for 1911 in the row Other industries changed from 8 to 88⁴ (based on the totals given).

Page 61, Footnote [2]: Dr. John Tathan changed to Dr. John Tatham.

Page 75: Pfleuger changed to Pflueger.