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Show one the Winds, or otherwife, are carryed into it; and fo caufeth it to prefs upon the Mercury inthe Box : but after that in fome time the Salts are diflolved or incorporated in the Aqueous Parts of the Aer, as in Raix or Svows fo foonas that is done,there is fome Space gaind; and fo, before any Weatherfalleth, the Aer is lefscrowded, and preffeth lefs upon the Mercury in the Box, which gives wayto its defcent in the Cylinder. g§. From hence alfo it is, that the Mercury rifeth higher, with 7ds, than it doth with thofe which are Warme. Both becaufe ld Winds there 1s the greateft quantity of Nitre: and that the fy are ufually the dryeft. So that the Nitre wanting fully to diffolve it; it takes up fo muchthe greater fpace, and fo caufeth a greater preflure in the Aer, as hath been faid, 6. §. QOvEO Chief Matters, Laffly, For the famereafon it comes to pafs, that the Mer- cury firft rifeth higher, and thenfalleth lower before Szom, than it doth before Rain. Becaufe that for the production of Sxow, the Aeris crowded with a greater quantity of Nétre, or fome other like Salts 5 which before they are diffolved, take up fo much the more fpace 5 andafterwards fo muchthe lefs, even before the Svom falls: as hath been proved. Tt FE In which, Id. fignifiesIdea. before’§. the Page. An. Anotmy. The Figuers The Figures following §. the Seétion in that Page. | Alkaline Salt, ix many Plants in A. | Cid, commonly the predo-| their natural eftate. 240.6.9. This the predominant Principle of the true Wood of a Plant, Id. uinant Principle in §.52. Plants, 240.§.8. That Anagallis, of what Tafte, 284. §. is of the Parenchyma. 10. Id.§.48. | Angellica Roots, when dry, full of Aer, how tobe examined, as rila-| Rofin, 1d.0.41. ting to Vegetation, Id.$.60. | Anatomyof Plants, why fit to be Aer, iz Plants,How made, An.93.| §.61. | Where it enters the Plant, 127.| g.1. Its Motion ibid. Aereal Salt, Aer-Veflels, §.16, &c. made, 1d.4.17. In what manner, §.18. What to be obferved thereby, §. 19. and Courfe in Plants,| Ofwhat ufe, §. 20. Animals, their Parts mixed Id.§.60. Several Menstrunums, 247. t0 their stru@ure, 115.| Cantharides, of what nature, See Root and other | Antimony, of what nature, Parts. with 253. 249. 245, §.23. Affinities of Plants, 1d.6.§.11. | Apertures of Seeds, An.2.§. 5. & Age of Roots, See Roots. {| 200.§.1. Agitation, «2 Canfe of Mixture, Apple dejcribed, An. ao. §.2, & 230.6.6. | 179. Akern, 186. Albumen, See Seed. | Aprecock, 148, | Arfinart, coded, how its Seedejacuy lated, |