Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 54
Fig. 87. … If neither the vertical nor horizontal tracesof the given planes intersect within the limitsof the drawing, it will be necessary to use twoauxiliary cutting planes, both of which may beparallel to F, both parallel to H^ or one parallelto Fand one parallel to H. 52. If two traces of the given planes…
Geometry, Descriptive
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