Upon a plain Qbnt not upon a curved superficies) to makea ia with an Axis , to any point ajjigued for the

Center. *

F list, project a Dial to the point of a Gnomon, the pro-tective way , then having assigned your Center, fromit, law hours parallels to the protective ones, so areyou urnimed with hours. For the Axis doe thus:

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Note, That it must paste through the.Center of the_ ial, and must be parallel to that Axis that was drawnirom the point of the Gnomon.

Now to set it absolutely parallel, it must be remembred,tiatw en the gnomonical Axis is reposed upon the Centero tusnewdiawn Dial, it must also cover the new Axis,iat is, to your fight, must lie just under it, and being li-j? Itc * at superficies you may the more easie stretch aree rom the Center, parallel to the gnomonical Axis:r u e your Semicircle being elivated to your latitude, and

ept in rhe fore-named superficies. . ?

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