Our boys; what they can do and how to do it (1893)
Stoddart, William, [from old catalog] comp · New York, Hunt & Eaton; Cincinnati, Cranston & Curts · leaf 186
OUR BOYS. 181 Where they meet there seems to be a strait of white connectingthe two seas of the same color. Upon looking at the otherpicture (Fig. 2), the white squares appear to be the larger,although the two are of the same dimensions. One person in seventeen is color blind. He cannot… … GREEW GRffN/SHBLUe. Fig. 2. defect of vision. Colors often deceive the best of eyes. Looksteadily at a blue wafer and then quickly at a yellow one. Thelatter will appear green. Other combinations can be made.This fact is important in mixing paint and printing maps.White is produced by the union of…
Handicraft · Amusements · Sports
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