最終更新日:2022/12/24

Laſt of all fit a Triangular Iron, whoſe angular point being laid to the Center of the Dyal Plane, one ſide muſt agree with the Subſtilar Line, and its other ſide with the Stilar Line; ſo is the Stile made. And this Stile you muſt erect perpendicularly over the Subſtilar Line on the Dyal Plane, and there fix it. Then is your Dyal finiſhed.

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