There are four words in the sentence of thirteen letters.
No. LXXXVI.—TOLD AT A GLANCE
Ask anyone to fix upon a number between 1 and 60 inclusive, and to point out to you the square or squares in which it appears:—
| 3 | 5 | 7 | 9 | 11 | 1 | 5 | 6 | 7 | 13 | 12 | 4 | |
| 13 | 15 | 17 | 19 | 21 | 23 | 14 | 15 | 20 | 21 | 22 | 23 | |
| 25 | 27 | 29 | 31 | 33 | 35 | 28 | 29 | 30 | 31 | 36 | 37 | |
| 37 | 39 | 41 | 43 | 45 | 47 | 52 | 38 | 39 | 44 | 45 | 46 | |
| 49 | 51 | 53 | 55 | 57 | 59 | 47 | 53 | 54 | 55 | 60 | 13 |
| 9 | 10 | 11 | 12 | 13 | 8 | 3 | 6 | 7 | 10 | 11 | 2 | |
| 14 | 15 | 24 | 25 | 26 | 27 | 14 | 15 | 18 | 19 | 22 | 23 | |
| 28 | 29 | 30 | 31 | 40 | 41 | 26 | 27 | 30 | 31 | 34 | 35 | |
| 42 | 43 | 44 | 45 | 46 | 47 | 38 | 39 | 42 | 43 | 46 | 47 | |
| 56 | 57 | 58 | 59 | 60 | 13 | 50 | 51 | 54 | 55 | 58 | 59 |
| 17 | 18 | 19 | 20 | 21 | 16 | 33 | 34 | 35 | 36 | 37 | 32 | |
| 22 | 23 | 24 | 25 | 26 | 27 | 38 | 39 | 40 | 41 | 42 | 43 | |
| 28 | 29 | 30 | 31 | 48 | 49 | 44 | 45 | 46 | 47 | 48 | 49 | |
| 50 | 51 | 52 | 53 | 54 | 55 | 50 | 51 | 52 | 53 | 54 | 55 | |
| 56 | 57 | 58 | 59 | 30 | 60 | 56 | 57 | 58 | 59 | 60 | 41 |
You can find the number at a glance, by simply adding together the numbers in the right-hand top corner cells of the square indicated. Thus, if 45 has been chosen, 32 + 8 + 4 + 1 = 45.