Imitative art;, or, The means of representing the pictorial appearances of objects, as governed by aerial and linear perspective: : being a manual of details, for the amateur sketcher and the man of business, with a chapter on finish.
An 1840 London drawing manual by Frank Howard, published by Darton and Clark, teaching amateur sketchers and businessmen how perspective governs the appearance of objects. The engraved plates show shadows cast by columns, pedestals and a cube, with dotted projection lines marking the light and vanishing geometry, and a designer could take from them a clear method for constructing cast shadows and receding forms.
