422 IndexEconomy in String, 108, 308
Effervescent Puzzle, An, 176,387
Egg: Cabinet, The, 79, 283; Laying, 50, 263
Eggs, Selling, 50, 264
Eight: Cards, The, 42, 258; -Pointed Stars,
Two, 146, 352
Election, A General, 17l, 381
Electricity, Water, Gas, and, 153,360
Elementary Arithmetic, 60, 272
Eleven, Dividing by, 35, 251
1150 A.D., Lilivati, 67, 275
Ellipse, Drawing an, 104,305
Encircled Triangles, The, 164, 372
Engine, The Damaged, 20, 238
Engineer's Name, The, 214, 411
Enigma, A Musical, 213, 410
Entangled Scissors, The, 219, 414
Epitaph, An (A.D. 1538),214,411
Equal: Distances, 15,234; Fractions, 39, 256;
Perimeters, 55, 267
Equilateral Triangles, 206, 406
Error, Correcting an, 54, 266
Escalator, The, 18, 236; 24, 242
Evens, Odds and, 45, 260; 133, 339
Exceptional Number, An, 32, 246
Exploring: the Desert, 22, 240; Mount Never-
est, 22, 240
Expressing Twenty-four, 41, 257
Extraction, Root, 36, 253
FactoriZIng, 35, 250
Factors, Find the, 35, 250
False Scales, The, 30, 245
Fanuly: Ages, 12,231; Mrs. Wilson's, 11,231;
A Square, 13, 232
Famous Paradox, A, 99, 200
Far: Was it?, How, 27, 244
Farmer's Sons, The, 101, 303
Feedmg the Monkeys, 64, 274
Fence Problem, A, 86, 287
Fences: The Five, 101,303; Six Straight, 103,
304; The Three, 97, 297
Ferry, Crossing the, 171,382
Fifteen, Magic Puzzle, 132, 338
Fifty-seven to Nothing, 203, 404
Figures: for Letters, 47, 262; Transferring the,
60,272
Find: the Distance, 21, 239; the Factors, 35,
250; the Numbers, 42, 258; the Squares, 63,
273; the Triangle, 71, 278
Finding: a Birthday, 13,232; a Square, 39, 255
First "Boomerang" Puzzle, The, 66, 275
Fish, The Weight of the, 78, 283
Fishing Boats, Sinking the, 156, 364
Five: Cards, The, 32, 247; Fences, The, 101,
303; Lines of Four, 167,375; -Pointed Star,
The, 145, 347; Squares, The, 204, 404
Flag, The Pirate's, 116, 320
Flanders Wheel, The, 136,341
Flies on Window Panes, 175,386
Flocks of Sheep, The, 50, 263
Fly: and the Cars, The, 26, 243; and the
Honey, The, 112,313
Fly's Journey, The, 110,311
Fly's Tour, The, 159,368; 212,410
Folding: a Hexagon, 127, 334; an Octagon,
128, 335; a Pentagon, 127, 334; Postage
Stamps, 130, 337
Football Results, 173,383
Footprints in the Snow, 158,367
Forming: Squares, 63, 273; Whole Numbers,
38,254
Fort Gamsons, 147,352
Four: Checkers, The, 87, 287; -Color Map
Theorem, The, 169,377; Cyclists, The, 24,
242; -Figure Magic Square, A, 143,347; Five
Lines of, 167,375; Householders, The, 101,
302; in Line, 174, 384; Pennies, The, 138,
342
Fours, The Two, 34, 248
Fractions: Domino, 191,395; Equal, 39, 256
Frames, Domino, 195,398
Fresh Fruits, 31, 246Game, a Weird, 4, 226
Garden: Bed, 85, 286; In a, 91, 292; Mr
Grindle's, 84, 285; Path, The, 84, 286; The
Price of a, 94, 294; Puzzle, A, 88, 289
Gamsons, Fort, 147,352
Gas, Water, Electncity, and, 153, 360