1 2 3 4 5 6 Time Flies Fast Men Wisely Say; (Tuesday) (Friday) (Friday) (Monday) (Wednesday) (Saturday) 7 8 9 10 11 12 Many Think, Alas, Time's Fooled Away. (Monday) (Thursday) (Sunday) (Tuesday) (Friday) (Sunday) These twelve words stand for the twelve months of the year, while their initial letter or letters represent the days of the week, as shown by the lines in parentheses, Sunday being represented by A. To find out the day of the week on which a certain date falls _in a leap-year_, take half of the last two figures of the given year, divide by 7, and the _remainder_ gives the date. For example, 1880: The half is 40; divided by 7, equals 5, with 5 remaining. Therefore, March 5th would fall on a Friday; June 5th on a Saturday; September 5th on a Sunday; and so on. To get the other dates is a matter of simple addition. According to this, January 5th would be Tuesday, and February 5th Friday, but _in leap-year_ the remainder must be increased one; therefore January 6th would be Tuesday, and February 6th Friday. _In non-leap-years_, take the previous leap-year, and subtract _one_ for each year past that leap-year. For example: Let us suppose that some one asks on what day of the week July 29, 1895, fell. The previous leap-year was 1892; the half of 92 equals 46; subtract one for each year past--_i.e._, 3--which would be 43; this, divided by 7, would leave a remainder of 1. So that July 1st fell on a Monday, and adding 28 days, four full weeks, gives us Monday, which your calendar will show you is right. If in dividing the last two numbers of the given year there should be no remainder, the date is 7. "But how are we to know the leap-years, without stopping to figure them out?" some one may ask. Very easily, if you will bear in mind that in the years having the _odd decades_, such as 50s, 70s, 90s, the leap-years end in 2 or in 6, as 1852, 1876; while those with _even decades_ end in 0, 4, or 8. With very little practice any bright boy or girl can soon master this, and while it will tend to surprise their friends, it will prove excellent mental exercise. Mr. Kellar has recently exhibited what he terms "Karmos." In its original form this trick, an imported one, as are most of the tricks he exhibits, was really very ingenious and baffling, though a little _slow_. To overcome this objectionable feature Kellar put on his thinking-cap, or had some other fellow to cudgel his brains, and the result was the following: Mrs. Kellar sits blindfolded on a platform erected on the stage, and gives the cube and square roots of numbers chosen or designated by the audience, but apparently unknown to her. These Mr. Kellar writes on a blackboard set up at one side of the stage in full view of the audience.