FAMILY FUN

New Zealand Tablet, 11 May 1911, Page 886

FAMILY FUN

The Disappearing Penny.—This is a clever little trick and very mystifying when cleverly performed. Take a small wineglass, coat the edge with mucilage, and place rim down on a sheet of paper until the mucilage is dry. Then cut away all of the paper close to .the glass, leaving it with a paper cover. Turn the glass down on a sheet of white paper and ask some one of the company to twist up a paper cone large enough to cover the glass. Borrow a coin of another member of the company and place it near' the glass on the sheet of paper. Take the cone and place it over the glass, and then taking both glass and cone together place them over the coin. Lift off the cone and the coin will not be visible, the paper cover of the glass having concealed it from view. To make it reappear again, cover the glass with the cone, lift them both off together, and the coin appears. The Hen-and-Egg Problem. —If a hen and a half lay an egg and a half in a day and a half, one hen will lay one egg in a day and a half, or two-thirds of an egg in one day. If one hen lays two-thirds of an egg in one day, six hens will lay twelve-thirds of an egg, or four eggs in one day, and in seven days six hens will lay 28 eggs. The problem is a strictly legitimate mathematical proposition, but the peculiar way in which it is stated makes it appear to be a ‘catch question.’