Page 17, changed "will came" to "will come."
Page 19, changed "where on can" to "where one can."
Page 21, changed "gain" to "gains."
Page 22, changed "reponsibility" to "responsibility."
Page 24, changed "read then" to "read them."
Page 27, changed "thinest" to "thinnest."
Page 29, changed "guage" to "gauge" (twice) and "at at" to "at."
Page 34, changed "undestand" to "understand."
Page 51, changed "shown it Fig. 35" to "shown in Fig. 35" and "llittle" to "little."
Page 56, changed "definately" to "definitely."