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A Short TREATISE Concerning Wind in Mans Body.
CHAP. I.
That Wind is a Spirit; and of the Division of Spirits.
I Suppose none doth question, but that that substance, whether it be air, wind, or blast, which is strong, & to be heard or felt, though not to be seen, is called a Spirit. For so Hip∣pocrates calls them in his Book of Winds. And Galen saith they are spirits, Epid. 1. Com. 3. And in his Book of the difficulty of breathing, and differences of breathing, and in his Pro∣gnosticks; and that a belch is a kind of spirit, and doth after a sort communicate with the spi∣rits of breathing. Thus it appears by these say∣ings of Galen, that wind is a spirit: now there are differences of spirits: therefore I shall shew the nature of all spirits, and begin from the chief