THE biochemists in Germany publish their results in the Biochemische Zeitschrifi, and some ten thousand original papers have been published in it in the past twenty-six years. The American and British work has been even more fruitful, at least in quality, during this period, so that there is little wonder that we are beginning to make progress in unravelling both the nature and structure of the substances found in the living cell and in understanding something of the reactions which take place there. Prof. Arthur Stoll of Basel has recently put together, for the purpose of a lecture, his own experiences since 1909 in developing some sections of biochemistry (“Ein Gang durch bio-chemische Forschungsarbeiten”, pp. 41+5 plates. Berlin: Julius Springer, 1933. 3 gold marks), much as in another walk of life a traveller might do on his return from a lengthy journey. Stoll began research with Willstatter and the chlorophyll molecule, and he returns to it at the end of his journey, for it has not yet given up all its secrets. In the meantime he has concerned himself with ergot, with scillarin, and with the digitalis glycosides. His pamphlet, which is illustrated, makes attractive reading: we concern ourselves too much nowadays with the abstruse intricacies of our sciences, and would be well advised to view them occasionally from a wider angle.