Last summer there was a most beautiful singer in my neighborhood that added to his own melodies a marvelous mimicry of other birds. In one morning I have heard him repeat over and over the _aoli_ of the wood thrush, the cardinal's notes, the songs of the indigo bird, the Maryland yellow-throat, the yellow-throated vireo, and the orchard oriole. Sometimes there would be a contest in song between the oriole and the catbird. The first was always the one to cease first, but each usually looked very dissatisfied--a ruffled ball of feathers at the end. The loveliest experience was hearing on a spring morning a song so liquid, so sweet, so varied, and yet so low, scarce above a whisper, that it seemed a dream. I stole to the window--and there sat my little bright-eyed singer in shadowy gray, singing, as if all to himself, a _shadow-song_. INDEX. VOLUME VI.--JUNE, 1899, TO DECEMBER, 1899, INCLUSIVE. Animals, Pet. As Causes of Disease, 26 Animals, When, Are Seasick, 192 Babies, Wee, 161 Bats in Burmese Caves, 32 Bee and the Flower, 164 Beetles, 92-94 Bird, The Flown, 61 Bird Lovers, Two, 212 Bird Notes, 187 Bird Study, The Psychology of, 53 Bird Worth Its Weight in Gold, 206 Birds, Accidents to, 77 Birds, Mounting of, 86 Birds, Honey, 116 Birds and Ornithologists, 80 Birds, Nebraska's Many, 84 Birds in Town, 89 Birds, Twilight, 67 Birds Gathered His Almond Crop, 228 Birds, Young Wild, 71 Birds, Traveling, 73 Birdland, Stories from, 229 Birdland, The Tramps of, 195 Bobolink, 215 Boy, Little, What the Wood Fire said to a, 173 Canaries, 166-167 Canon of the Colorado, The Grand, 106-107, 120 Charley and the Angleworm, 12 Cheeper, A Sparrow Baby, 103 Chewink, 158-160 Child-Study Literature. A Contribution to, 85 Chipmunk, The, 177-179 Christmas Once Is Christmas Still, 233 Coca, 202-203 Color Photograph, A Study of, the 216 Common Minerals and Valuable Ores, 191 Cowbird, 224-225 Cruelty, The Badge of, 128 Cuba and the Sportsman, 140 December, 229 Dog, The Pointer, 49-51 Earth, How Formed, 110-111 Eggs, Birds', Why and Wherefore of the Colors of, 152 Emperor's Bird's Nest, The, 48 Fashion's Clamor, 200 Feather, Changes in Color, 2 Finns, Bird Lore of the Ancient, 186 Flower, the Bee and the, 164 Forests, 97-99 Fowls, Farm-yard, 118-119 Hawk, John's, 42 Hawk, Red-tailed, 208-209 Home, Returning, 115 Humming Bird, A Rare, 145 In Orders Gray, 237 Indirection, 23 Insect Life Underground, 92-94 Iron Ores, 189-191 Jim and I, 149 June, A Day in, 8 Lady's Slipper, The, 146-148 Lilies, Water, 82-83 Lurlaline, 85 Lyre Bird, 218-219 Marbles, 62-63 Mandioca, 72 Maryland Yellow Throat, 214-215 Mayflowers, The, 37 Minerals, 74-75 Mississippi, The, 174 My Neighbor in the Apple Tree, 1 Narcissus, The, 198-199 Nature, Accordance of, 80