There is no mode of exercising the faculty of observation and the
faculty of accurate reproduction of that which is observed, no
discipline which so readily tests error in these matters, as drawing
properly taught And by that I do not mean artistic drawing; I mean
figuring natural objects. I do not wish to exaggerate, but I declare
to you that, in my judgment, the child who has been taught to make an
accurate elevation, plan and section of a pint pot has had an admirable
training in accuracy of eye and hand.