Helmholtz, Von, 41.

Honey, The Barrels of, 111, 236.

Honeycomb Puzzle, The, 75, 202.

Horse Race Puzzle, The, 117, 240.

Horseshoes, The Two, 40, 175.

Houdin, 68.

Hydroplane Question, The, 12, 155.

Hymn-board Poser, The, 145, 250.

Icosahedron Puzzle, The, 70, 198.

Jack and the Beanstalk, 145, 249.

Jackson, John, 56.

Jaenisch, C.F. de, 92.

Jampots, Arranging the, 68, 197.

Jealous Husbands, Five, 113, 236.

Joiner's Problem, The, 36, 171. ---- ---- Another, 37, 171.

Jolly Gaol-Birds, Eight, 122, 243. ---- ---- Nine, 122, 243.

Journey, The Queen's, 100, 227. ---- The Rook's, 96, 224.

Junior Clerks' Puzzle, The, 4, 150.

Juvenile Puzzle, A, 68, 197.

Kangaroos, The Four, 102, 228.

Kelvin, Lord, 41.

Kennel Puzzle, The, 105, 231.

King and the Castles, The, 56, 189. ---- The Forsaken, 106, 232.

Kite-flying Puzzle, A, 54, 187.

Knight-guards, The, 95, 222.

Knights, King Arthur's, 77, 203. ---- Tour, Magic, 127, 247. ---- ---- The Cubic, 103, 229. ---- ---- The Four, 103, 229.

Labosne, A., 25, 90, 216.

Labourer's Puzzle, The, 18, 160.

_Ladies' Diary_, 26.

Lagrange, J.L., 9.

Laisant, C.A., 76.

Lamp-posts, Painting the, 19, 161.

Leap Year, 155. ---- ---- Ladies, The, 19, 161.

Legacy, A Puzzling, 20, 161.

Legal Difficulty, A, 23, 163.

Le Plongeon, Dr., 29.

Letter Block Puzzle, The, 60, 194. ---- Blocks, The Thirty-six, 91, 216. ---- Puzzle, The Fifteen, 79, 205.

Level Puzzle, The, 74, 202.

Linoleum Cutting, 48, 181. ---- Puzzle, Another, 49, 181.

Lion and the Man, The, 97, 224. ---- Hunting, 94, 222.

Lions and Crowns, 85, 212. ---- The Four, 88, 214.

Lockers Puzzle, The, 14, 156.

Locomotion and Speed Puzzles, 11.

Lodging-house Difficulty, A, 61, 194.

London and Wise, 131.

Loyd, Sam, 8, 43, 44, 98, 144, 232, 233.

Lucas, Edouard, 16, 76, 112, 121.

Luncheons, The City, 77, 203.

MacMahon, Major, 109.

Magic Knight's Tour, 127, 247. ---- Square Problems, 119. ---- ---- Card, 123, 244. ---- ---- of Composites, 127, 246. ---- ---- of Primes, 125. ---- ---- of Two Degrees, 125, 245. ---- ---- Two New, 125, 245. ---- Strips, 121, 243.

Magics, Subtracting, Multiplying, and Dividing, 124.

Maiden, The Languishing, 97, 224.

Mandarin's Puzzle, The, 103, 230. ---- "T" Puzzle, The, 126, 246.

Marketing, Sat.u.r.day, 27, 168.

Market Women, The, 3, 149.

Mary and Marmaduke, 7, 152.

Mary, How Old was, 8, 153.

Ma.s.sacre of Innocents, 139.

Match Mystery, A, 118, 241. ---- Puzzle, A New, 55, 188.

Mates, Thirty-six, 106, 233.

Mazes and how to thread Them, 127.

Measuring, Weighing, and Packing Puzzles, 109. ---- Puzzle, New, 110, 235.

Meeting, The Suffragists', 19, 161.

Mellor, W.M.F., 242.

Menages, Probleme de, 76.

Mersenne, M., 168.

Mice, Catching the, 65, 196.

Milkmaid Puzzle, The, 50, 183.

Millionaire's Perplexity, The, 3, 149.

Mince Pies, The Twelve, 57, 191.

Mine, Inspecting a, 71, 199.

Miners' Holiday, The, 23, 163.

Miser, The Converted, 21, 162.

Mitre, Dissecting a, 35, 170.

Monad, The Great, 39, 174.

Money, A Queer Thing in, 2, 148. ---- Boxes, The Puzzling, 3, 149. ----, Pocket, 3, 149. ---- Puzzles, 1. ---- Puzzle, A New, 2, 148. ----, Square, 3, 149.

_Monist, The_, 125.

Monk and the Bridges, The, 75, 202.

Monstrosity, The, 108, 234.

Montenegrin Dice Game, The, 119, 242.

Moreau, 76.

Morris, Nine Men's, 58.

Mosaics, A Problem in, 90, 215.

Mother and Daughter, 7, 152.

Motor-car Race, The, 117, 240. ---- Tour, The, 74, 201. ---- Garage Puzzle, The, 62, 195.

Motorists, A Puzzle for, 73, 201.

Mouse-trap Puzzle, The, 80, 206.

Moving Counter Problems, 58.

Multiplication, Digital, 15, 156. ---- Queer, 15, 157. ---- Simple, 23, 163.

Multiplying Magic Squares, 124.

Muncey, J.N., 125.

Murray, Sir James, 44.

Napoleon, 43, 44.

Nasik Magic Squares, 120.

Neighbours, Next-Door, 8, 153.

Newton, Sir Isaac, 56.

Nine Men's Morris, 58.

Notation, Scales of, 149.

Noughts and Crosses, 58, 117.

_Nouvelles Annales de Mathematiques_, 14.