[131a] He refers (p. 141) to what is in principle the same experiment (see Fig. 27) as due to Mr. Brotherton, and published in the Abridgement of the Phil. Trans. II. p. 708.
[131b] He notices that the swelling of the bark is connected with the presence of buds. The only ring of bark which had no bud showed no swelling.
[133] It appears that Mayow made similar experiments. Dict. Nat. Biog. s.v. Mayow.
[134a] History of Chemistry, 1909, I. p. 69.
[134b] Hales made use of a rough pneumatic trough, the invention of which is usually ascribed to Priestley (Thorpe’s History of Chemistry, I. p. 79)
[135a] He speaks here merely of the apples used in a certain experiment, but it is clear that he applies the conclusion to other plants.
[135b] Vegetable Staticks, p. 313. It should be noted that Hales speaks of organic as well as inorganic substances.
[137a] The above account of Hales’ connexion with the Royal Gardens at Kew is from the Kew Bulletin, 1891, p. 289.
[137b] I am indebted to Sir E. Thorpe for a definition of statical “Statical (Med.) noting the physical phenomena presented by organised bodies in contradiction to the organic or vital.” (Worcester’s Dictionary. 1889.)
[138a] Arbeiten, I.