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CHAP. VIII.
Of Landskip, and Rules to be observed therein.
LAndskip is that which expresseth in Picture whatsoever may be beheld upon the Earth, within the species of Sight; which is the termination of a fair Horizon, representing Towns, Villages, Castles, Promontaries, Mountains, Rocks, Vallies, Ruines, Rivers, and whatsoever else the eye is capable of beholding within the species of the Sight. To express which, and to make all things appear in Draught or Picture according to true proportion and distance, there are several Rules to be observed, of which take these few following.
RƲLE I. In every Landskip shew a fair Horizon, the Sky either clear or overcast with Clouds, expressing the rising or setting of the Sun to issue (as it were) from or over some Hill, or Mountain, or Rock; the Moon or Stars are never to be expressed in a fair Landskip, but in a Night-piece, I have often seen it, as in a piece of our Sarinus being taken by night, and in others. As an Astronomer with his Quadrant taking the height of the Moon, and ano∣ther with his Cross staff taking the distance of cer∣tain Stars, their Man standing at a distance with his Dark-lanthorn, to see their Degrees when they had made their observation; these things, as taking of the Partridge with the Loo-bell, and the like, become Night pieces very well.