Fred T. Hodgson · Frederick J. Drake and Co. · leaf 180
osi-tion of the astragal and base mouldings (which act asbearings when ruling off the floating stuff and the finalcoat), so as to obtain a true and uniform diminish, andalso to form a fair surface. The appended illustrationNo. 9 elucidates the method of setting out diminishedcolumns which is also… … METHODS OF WORK 179 having been fixed, i. e., the height of the shaft and itsupper and lower diameters, draw a perpendicular linewhich may be taken as the centre line of the column;then set out the upper and lower diameters, as shown inPig. la. This figure also shows (mc-half of the con-st ructural…