The sectorian system of handrailing
An edition of The sectorian system of handrailing (1873)
... elucidating the whole subject by the introduction of fifteen plates, with suitable letter-press notes on each plate. The principle is entirely new, and adapted to the construction of wreaths for stairs, however difficult, by the use of the sector, a mathematical instrument founded on the fourth proposition of the sixth book of Euclid, and adapted to this system.
By Forbes, William
Publish Date
1873
Publisher
Printed at Gary's steam printing house]
Language
eng
Pages
16