Jay, Canada (_Perisoreus canadensis_), 204, 260.

Jefferies, Richard, 131, 197, 203.

Jesse, Edward, his story of some swallows, 148.

Katydids, 49.

Kea, 260, 261.

Kearton, Richard,
his story of an osprey, 137;
on the wren's nest, 138, 139;
on a colony of terns, 139;
his experiments with wooden eggs, 227, 228;
on instinct in animals, 257.

Keyser, Leander S., his experiments with young birds, 69, 70.

Kingbird (_Tyrannus tyrannus_), 177.

Kipling, Rudyard,
his _Jungle Book_, 14;
his _The White Seal_, 14.

Kittens, 75.

Language, a necessity to thinking, 187, 188.

Lark. _See_ Skylark.

Lark, prairie horned (_Otocoris alpestris praticola_),
spreading of, 36, 37;
song and song flight of, 37, 38;
killed by the locomotive, 38.

Leaves, persistent and deciduous, 51.

Lion, Bostock on the training of, 239-241.

Loco-weed, 83.

Locusts, 2.

Loon (_Gavia imber_), 180, 184;
under ice, 235, 236.

_Lophius piscatorius_, 107.

Lubbock, Sir John, on recognition among bees and ants, 200.

Lynx, Canada, incredible story of, 183, 184.

Maeterlinck, Maurice,
on the bee, 15;
on the dog, 192, 193;
his _Life of the Bee_, 201.

Mallard, domestic, finding its way home, 53-57.

Man, progress of, 26, 27;
the line that divides him from the lower orders, 80, 81;
animal origin of, 229, 230;
instinct in, 255;
learning through practice, 256.

Martin, Mrs. Annie, her story of a crow, 135, 136.

Meadowlark (_Sturnella magna_),
song of, 34;
flight song of, 43, 232, 233.

Meadowlark, Western (_Sturnella magna neglecta_), song of, 103.

Mice and traps, 23, 24.

Michelet, 147.

Mimicry, 248-250.

Mongoose, 72.

Monkeys, capable of the simpler forms of reason, 127.

Moose, a habit of, 142.

Moral code, evolution of, 23.

Morgan, C. Lloyd, 143, 149;
his experiment with his dog, 164, 165.

Moth, hummingbird, 249, 250.

Mouse, white-footed, _or_ deer mouse, an incident, 163, 164.

Muir, John, his story of his dog Stickeen, 193, 194.

Mullet, 96.

Mushrooms, animals eating, 83.

Muskrat, 211.

Mussels, ducks drowning, 180-182.

_My Dogs of the Northland_, by Egerton Young, 194.

"My friend and neighbor through the year," 268.

Natural history romancers,
influence of, 13, 14;
methods of, 16, 17.