The cabinet-maker and upholsterer's drawing-book : in four parts (1802)
Sheraton, Thomas, 1751-1806 · London : Printed by T. Bensley ... for W. Baynes · leaf 248
re. G R is the ground line, and H L the horizon. Let s be the center, and d the dillance of the, pidure. Let it now be required to reprefent thirty-lix fquares. Operation.—Lay A D, the fide of the original fquare, fixtimes on the ground line G R, contained between A i*, as thefigure fhows. Draw… … T Sl<rr-ali,iil)<:l UrM/Zicr/c^.r t/i,- Acf r/lWr^s [fV t?.T,-rrv. Jjf7/F Ii . 1/^92 ( 245 ) feveral points of interfedilion marked by thefe letters, drawlines parallel to G R, the ground line, and there will be prorduced the number of fquares required. But if it be neceflary tofill up the…