Page 61
Nu. 3
The upright of the work, as when entire, in which the perpendicular stones of the outward circle, are counter∣signed with the Letter I, as in the groundplot.
N
The Architrave lying round about upon them, being mortaised into them, and joynted in the middle of each of the perpendicular stones. This Architrave is three foot and an half broad, and two foot and an half high.
O
The Architrave lying on the top of the great stones of the Hexagon, and mortaised also into them, sixteen foot long, three foot nine inches broad, and three foot four inches high. This Architrave continuing onely from stone to stone, left betwixt every two and two, a void space free to the Air uncovered. For, if they had been con∣tinued throughout the whole Hexagon, then necessarily there must have been two tenons upon each of the said stones, as those of the outward circle had, but being dispo∣sed as aforesaid, that one, which was in the middle, and yet remains apparent, was sufficient for the thing intended.