The text of this e-book has been preserved in its original form apart from correction of the typographic errors listed below. Illustrations have been repositioned adjacent to relevant tabulated data, and the List of Illustrations adjusted accordingly. On p.72 an image of the Xanthin formula incorrectly shows a double bond between a carbon and nitrogen atom – the correct formula is shown on the next page – and there is a date discrepancy on p. 248 between the text and the illustration caption (November 18/February 27). Footnotes have been repositioned below the relevant paragraphs. enyzmes → enzymes oxgyen → oxygen enyzme → enzyme Futher → Further mechancial → mechanical rythmical …
Or read it translated: 日本語 · 中文 · हिन्दी · Español · العربية · Français · বাংলা · Português · Русский · Bahasa Indonesia · اردو · Deutsch · Kiswahili · 한국어