The description and use of an architectonick sector, and also of the architectonick sliding plates : Whereby scales of all sizes are most readily and universally obtain'd for fluting pillasters and columns, and drawing the geometrical plans and uprights, in any of the five orders, according to the given diameter of a column. With several other scales, very convenient and ready for the practice of the ingenious designers of building.The second edition. To which is added, an appendix, shewing the application and usefulness of the architectonick setor lines in drawing the geometrical plan and upright of a building. By T. Carwitham, painter. - Carwitham, T. (Printed for Thomas Heath, mathematical instrument-marker, at the Hercules and Globe, next the Fountain Tavern in the Strand,, 1733)