Page:Collingwood - Life and Letters of Lewis Carroll.djvu/366

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342
THE LIFE AND LETTERS OF

the others did not require; but the new ones are much the quickest. I shall send them to The Educational Times, with date of discovery.

On November 4th he wrote:—

Completed a rule for dividing a given number by any divisor that is within 10 of a power of 10, either way. The principle of it is not my discovery, but was sent me by Bertram Collingwood—a rule for dividing by a divisor which is within 10 of a power of 10, below it.

My readers will not be surprised to learn that only eight days after this he had superseded his rule:—

An inventive morning! After waking, and before I had finished dressing, I had devised a new and much neater form in which to work my Rules for Long Division, and also decided to bring out my "Games and Puzzles," and Part iii. of "Curiosa Mathematica," in Numbers, in paper covers, paged consecutively, to be ultimately issued in boards.

On November 20th he spent the day in London, with the object of seeing "The Little Minister" at the Haymarket. "A beautiful play, beautifully acted," he calls it, and says that he should like to see it "again and again." He especially admired the acting of Mrs. Cyril Maude (Miss Winifred Emery) as Lady Babbie.