"A capital book of posers."-Daily News. "The Puzzles ... reach the limit of ingenuity and intricacy; and it is well for the sanity of his readers that the author gives a list of solutions at the end of the book."-Observer. "A book that will provide much entertainment for Christmas gatherings ... ingenious puzzles and problems invented by 'Sphinx, ' the Puzzle King."-The Captain. "Mr. Dudeney, whose reputation is world-wide as the puzzle and problem maker of the age ... sure to find a wide circulation ... as attractive in appearance as its contents are fascinating."-English Mechanic and World...