Page:Arts & Crafts Essays.djvu/349

 for carrying out really important work, it is much the simpler way to make a model (however rough) which shall accurately express everything one wishes to see in the finished work; and, assuming the designer to be fairly dexterous in the use of clay or other plastic material, a sketch model will not occupy any more of his time than a drawing would.

To put it plainly, no designer can ever know what he ought to expect from a worker in any material if he has not worked in that material himself. If he has carved marble, for instance, he knows the extreme care required in undercutting the projecting parts of the design, and the cost entailed by the processes necessary to be employed for that purpose. He therefore so arranges the various parts of his design that wherever it is possible these projecting portions shall be supported by other forms, so avoiding 325