A practical manual of house-painting, graining, marbling and sign-writing : containing full information on the processes of house-painting in oil and distemper, the formation of letters and practice of sign-writing, the principles of decorative art, a course of elementary drawing for house-painters, writers, etc., and a collection of useful receipts ; with nine coloured illustrations of woods and marbles, and numerous wood engravings (1888)
Davidson, Ellis A., d. 1878 · London : C. Lockwood & Son · leaf 280
al manner, but must merge gradually into FREE-HAND DRAWING. 253 it. This will give the interpretation of Proposition 10,page 231, that all junctions of curved lines with curved,or curved with straight, should be tangential to eachother.Now, a tangent in geometry is a line whichtouches a circle… … I Fig. 65. cut off by the straight line, and thus it proceeds fromthe line in a sudden and abrupt manner, instead ofmerging gradually and imperceptibly into it. So gra-dual should this meeting take place, that it should bescarcely possible to discover the exact point of junction.Figures 66 and 67…
House painting · Sign painting · Lettering
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