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2.About the Air may be observ'd, its Temperature, as to the first four Qualities (commonly so call'd) and the Measures of them: its Weight, Clearness, Refractive power: its Sublety or Grossness: its abounding with, or wanting an Esurine Salt: its variations according to the seasons of the year, and the times of the day; What duration the several kinds of Weather usually have: What Meteors it is most or least wont to breed; and in what order they are generated; and how long they usually last: Especially, what Winds it is subject to; whether any of them be stated and ordinary, &c. What diseases are Epidemical, that are supposed to flow from the Air: What other diseases, wherein that hath a share, the Countrey is subject to; the Plague and Contagious sicknesses: What is the usual salubrity or insalubrity of the Air; and with what Constitutions it agrees better or worse, than others.
3.About the Water, may be observ'd, the Sea, its Depth, degree of Saltness, Tydes, Currents, &c. Next, Rivers, their Bigness Length, Course, Inundations, Goodness, Levity (or their Contraries) of Waters, &c. Then, Lakes, Ponds, Springs, and especially Mineral waters, their Kinds, Qualities, Vertues, and how examined. To the Waters belong also Fishes, what kinds of them (whether Salt or Fresh-water fish) are to be found in the Country; their Store, Bigness, Goodness, Seasons, Haunts, Peculiarities of any kind, and the wayes of taking them, especially those that are not purely Mechanical.
4.In the Earth, may be observed,
- 1. It self.
- 2. Its Inhabitants and its Productions, and these External and Internal.
First, in the Earth it self may be observ'd, its dimensions, scituation, East, West, North, and South: its Figure, its Plains, and Valleys, and their Extents its Hills and Mountains, and the height of the tallest, both in reference to the neighbouring Valleys or Plains, and in reference to the Level of the Sea: As
