Peas Produce Lots of Gas

From Alchemy to Chemwtr) in Picture and Story. By Arthur Greenberg. Copyright 2007 John Wiley Sons, Inc. 

FIGURE 179. Early pneumatic apparatus for measuring airs derived from distillation of vegetable matter [from the second edition of Stephan Hales Vegetable Staticks (London, 1731) first edition, 1727]. 

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