The purpose of the-following pages is to show as clearly as may be the method to be pursued by the student in deciphering or translating the Biliteral Cipher. The first requisite is good eyes; the second, a care; ful a=nd observant attitude of mind; the third, much devoted patience. (a good reading-glass, preferably oblong in shape, is a highly useful, indeed an almost indispensable mechanical adjunct.)