Mangrove, Flowers of, 15. Jungle, description of, 9-12. Manner of preparation of, 10. Map of trip through, 2. Red, 135, 153. Sunset in Mangrove wilderness, _80_. White, 135, 153. Wilderness, _95_. Young plants, _11_, 58. Mantis, 213, 289. _Stagmomantis hoorie_, 210. Map, of Abary Island, _361_. Of three expeditions into British Guiana, _110_. Of trip through Mangrove Wilderness, _2_. Marciano, 215, 222, 223, 234, 237, 238, 240, 242, 243. Marlborough Police Station, 237. Maroodie. _See_ Guan. Martins, Gray Breasted, 112, 244, _245_, 247, 379. Matope, 253, 256, 258. Mazaruni River, 244, 246, 248. Steamer, 134, 141, 142. Maximiliano Romero, 101-102, 106. _Mecistogaster_ sp., 270, 271. _Mesomphalia discors_, 268. Mission, on Morooka River, 225. Warramuri, 231, 233. Monkeys, Capuchin, 6, 20. Marmoset, 300. No fear of railroad, 56, 57. Red Howling, Description of, 325-326. As food, 329. Voice of, 20, 56, 142, 170, 197, 277, 293, 325. _Monstera_, 279. Mora Passage, 135, 146, 153, 174, 175, 301. Mora Tree, 135, 137, 138, 269, _296_. Morawhanna, 135. Typical Indian House of, _136_. Home of Mr. Howie King at, 142. Morooka River, 225, 231. Agriculture on, 233. Morpho butterfly. _See_ Butterflies. _Morpho metellus_, 314. Mosquitoes, 12, 30, 39, 76, 86, 112-114, 120, 141, 144, 214, 235, 362, 364. Moths, Hawk, 210. Moon, 210. Owl, 213. Waltzing, 46, 47. Mountains of Venezuela, 30, _31_. Mount Everard, 135, 137, 139, _140_, 141. Bête rouge of, 144-146. Mucka-mucka, 219, 238, 251, 366. Muricot, 198. _Mycetes seniculus._ _See_ Monkey, Red Howling. _Myrmecophaga jubata_, 256, 257. N. Negro of British Guiana, _117_, 119. _Neoponera commutata_, 49. Nicholson, Mr., 253, 254, 256, 332. _Notogonia_ sp. _See_ Wasps. _Nyctobates giganteus._ _See_ Beetles, Bark. O. _Odocoileus savannarum._ _See_ Deer, Savanna. _Odontochila cayennensis._ _See_ Beetles, Tiger. _Odontochila confusa._ _See_ Beetles, Tiger. _Odontochila lacordairei._ _See_ Beetles, Tiger. Opossum, 144, 308, 309. Orchids, fragrant white, 22, _23_. Orinoco River, 4. Orioles, Moriche, 142. Yellow, 121, 127, 129. Ospreys, 156. Otter, 163, 281. P. Paca, 160, 305. Paddle-wood, 191, 301, _325_. Palm sheath, rocking toy, _100_. Covering flower of palm, _102_. _Papilio polydamus_, 132. Parauque, 148, 263. Paria, Gulf of, 5, 75. Parrakeets, 30. Parrots, Amazon, Mealy, 174, 201, 233, 234, 235. Blue-headed, flocking of, 157-158. Dusky, 344. Young of, _344_, 345. Yellow fronted, _66_, 135, 146. Eggs of, _67_, 68. Home of, _64_. Island of in Pitch Lake, 62, _63_. Nest of, _65_, 66. Young of, _67_, 68. _Passiflora laurifolia._ _See_ Passion Flower. Passion Flower, _272_, 273.