Augsburg, De Resco Leo, b. 1859 · Boston, New York, Educational Pub. Co · leaf 150
ion of Fig. 21, then Fig. 22, then23 and 24, and study each position closely. Observe that theprinciple is the same as with the box and the horizontal cylinder inregard to the eye. A new line is introduced in these figures; Lines 1, 1, and2, 2, Fig. 22 are oblique receding lines. Being receding… … The Receding Prism.— Figs. 25-29 represent the variouspositions of the horizontal receding prisms. Hold a model inposition and compare it with each drawing line for line. Observeeach })oint both on the model and in the drawing. Aim to see andknow the principle. f
Drawing
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