Thus, if he has chosen a 7, a 10, and an ace (11), he must cap these with 8, 5, and 4 cards respectively. There will then be 32 cards left, and 32 - 4 = 28, which is the sum of 7, 10, and 11.

ROUND THE MONKEY

Now for a few words about an old friend, familiar to most of us. If a monkey sits on a post holding one end of a string, and continually moves to face a man who holds the other end, and who walks round the post, does that man walk round the monkey?

R. A. Proctor, the astronomer, treated the question thus, some years ago in Knowledge:—“In what way does going round a thing imply seeing every side of it? Suppose a man shut his eyes, would that make any difference? Or suppose the man stood still, and the monkey turned round, so as to show the man its front and back, would the stationary man have gone round the monkey?”

We commend this ancient and puzzling subject of controversy to our readers. Our own opinion is that the man does walk round the monkey, in the commonly accepted meaning of the words, but “who shall decide when doctors disagree?”

BURIED ANIMALS

Here are a few cleverly buried animals:

“Come hither, mine friend,” said the monk, eyeing him kindly, “be a very good boy, step through the furze bravely, and seek the lost riches.”

Ermine; monkey; beaver; zebra; ostrich.

We, as electricians, proclaim the electric motor cab a boon to London.