Edward Hazen, Popular Technology; or, Professions and Trades…
“ When any considerable work in stone or marble is to be done, the sculptor forms a model of clay or wax, to guide him in the execution. The soft material is moulded to the proposed form with the hands and small instruments of ivory. The model is by far the most difficult part of the work, and it is here the genius of the artist is to be displayed. The process of copying the model in stone or in any other substance, is an operation merely mechanical, and can often be done by another person as well as by the scientific sculptor himself. ”
