A Mughal chahar bagh
A walled square divided in four by raised walks with water channels down their middles, meeting at a central tank with a pavilion. The quarters are sunk below the walks and planted with fruit trees; cypresses line the walks. The water enters from a terrace at the head of the garden down a carved chute. After Babur’s gardens and the Taj Mahal garden.
The rules it illustrates
Order and running water in a flat land. Where the ground is flat and the water lies deep, raise it from wells by wheels into tanks and channels, and lay the garden out in regular, symmetrical plots round them, with walks, beds of flowers and trees in order.
Where it appears in the book
In the styles Persian and Mughal garden.
In the chapters Gardens and Landscape.