Vaults and Domes
In vaulted ceilings or domes the division may be effected by horizontal or vertical bands, in which case the spaces between diminish in size towards the centre. If the division of the dome is vertical, or more properly speaking, by radial lines, it is desirable to divide further the spaces thus formed by introducing intermediate shapes, such as circles, unless the diameter be relatively small.
No. 194. Adam Ceiling.