Teachers' manual for the Prang course in drawing for graded schools, books 1-6 (1897)
Clark, John Spencer, Prang Company, Hicks Mary D, Perry, Walter Scott · Boston. Prang educ. co. · leaf 126
owing fast. In towns whereelectricity is used for lighting the streets, conic reflectors may often be studied atdifferent heights. Many of the glass shades used on gas burners and electroliers areconic in form and easily studied. In examining and criticising these sketches the teacher will of… … 1. A face view of a circle is always a circle. 2. An edge view of a circle is always a straight line.J. A circle seen oblitjuely ahvays appears like an ellipse. 4. The more obliquely the circle is seen, the more nearly the ellipse approaches astraight line. J. The less obliquely the circle is seen,…
Drawing -- Study and teaching
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