Publisher's Synopsis
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1898 edition. Excerpt: ...will appear black before it really is; to get it just right, test it in the inking-pen. It should flow readily, dry quickly, and the resulting line should be jet black, and not easily erased or blurred when dry. If the line fades as it dries, add more ink to the mixture from the stick. If it lacks the other desired properties, try another make of ink. Chinese inks vary in quality, but it does not follow that the most expensive kinds are the best. Try different sticks until one is found which is satisfactory. "Wipe this dry after using to prevent it from crumbling, and it will last for a long time. The following precautions should be observed: Clean the saucer be fore using. Avoid dust or undissolved particles of ink in the mixture--they clog the pen. Keep the mixture covered Avhen not in use. Do not use ink more than two or three days old, but mix a fresh supply. Do not try to use ink which has dried in the saucer. Colored inks may be prepared from artists' water-color cakes in a similar manner. 36. Shade Lines.--(a) Edges of an object which lie between light and dark surfaces are often represented by lines about twice as wide as other lines. Such lines are called shade lines. They are frequently omitted, especially in working drawings. They add, however, to the appearance of a drawing, and when properly constructed are of value in understanding or reading it. Directions for their use (which differs in different kinds of drawing) will be found in Arts. 53,128. (b) In shading a circle only part of the circumference is made heavy, the line gradually decreasing each way until it merges into the original width. To produce this effect, first draw the circle with the ordinary width ink line. Imagine a line drawn through the centre of the...