Index 



401 



Life on other worlds, 227, 243, 248. 



Light, affecting shape of trees, 53*, 

 54*, 56, 81 ; effect on leaves, 32, 65 ; 

 source of energy, 27, 65, 214; stars, 

 179, 192, 200, 205, 209, 212, 214; 

 sun, 214. 



Lighthouses attracting birds in migra- 

 tion, 306. 



Lime needed by trees, 113, 138. 



Lime tree, 57. 



Limicolae, 381. 



Linden, S7*-6i; bast, 59*-6o; blos- 

 soms, 57*; many uses, 60; wood 

 (basswood), 58-59, 153*, 155. 



Lion, 209. 



Living parts of a tree, 11-15, 45- 



Locust, wood of the black, yellow, or 

 common locust, 46, 87, 150; of 

 honey locust, 150. 



Lodges, Indian, 115. 



Lyra, the Lyre, 197. 



Machinery, maple, 28. 



Magnetism and sun spots, 218; af- 

 fected by the moon, 224. 



Magnitude of stars, 177, 192. 



Magnolia, 84*. 



Magpie, 344*.^ 



Mahogany finish, 35. 



Manure, 134, 135, 138. 



Maple, 2*, 3*, 23-32; family, 31; for 

 shade and ornament, 23, 28; fruit, 

 23 ; kinds, 28-31 ; leaves, 28*, 29*, 

 30,31*; seeds, 32; size, 31; sugar, 

 23-37; wax, 26; wood, 27-28, 44, 

 152*, 154. 



Mars, 235, 236*, 241-244. 



Martin, bee, 350; purple, 267, 316- 

 317, 355, PL VII. 



Masts, 123, 126. 



Mate retained for life, 376. 



Mats, linden, 60. 



May beetles, 296, 336, 342, 347. 



Meadowlark, 339*~34O, 379, PI. X. 



Measuring worms, 303. 



Medullary rays, 14*, 15, 103*. 



Mercury, 237-238*. 



Mesquite roots, 79. 



Meteor, 255-259. 



Meteorite, 255*-257*. 



Meteor showers, 257-259, 263. 



Mice, 310, 372, 373-, 374, 375, 376,388. 



Migration of birds, 304-307, 389. 



Migration routes, 305*, 306*. 



Milky Way, 180*. 



Mirrors in wood, 102, 103*. 



Mizar, 208. 



Mockernut, 89. 



Mocking bird, 298, 311, PI. VI. 



Moon, 223*-23i ; appearance with 

 telescope, 223*, 224*^25 ; atmos- 

 phere, 225-226; craters, 225; den- 

 sity, 226; distance, 167, 169*, 171, 

 224; eclipse, 230-231*; influence, 

 223-224; light, 161, 223, 228, 229, 

 230; mountains, 225; phases, 228 

 229; size, 224; temperature, 226. 



Morning star, 238. 



Mosquitoes, 267, 317, 351, 357, 383. 



Moth, 40, 87, 112, 357, 359, 362. 



Mountain ash, 55. 



Mounting specimens, 5-6. 



Mulberry wood, 150. 



Mulch, 135, 138. 



Naval stores, 127. 

 Nebulae, 204*, 205, 263*. 

 Nectar, 57, 354. 

 Needs of trees, 137. 

 Neptune, 170, 232, 252-253. 

 Nighthawk, 357-358*, PI. XII. 

 Northern Cross, 196-197*. 

 Northern Crown, 201. 

 North Star, 191, 192, 195. 

 Notes on birds, 269-270. 

 Nutgalls, 96. 



Nuthatch, 284, 286-287*, PI. V. 

 Nuts, 89, 91-92 ; shells, 92. 



Oak, 21*, 71, 93-98*; leaves, 93, 94*, 

 95*; shade, 97*, 98*; wood, 14, 43, 

 49, 94-95, 102, 103*, 150*, 151, 

 152. 



Oars, ash, 54. 



Observatory, 160*. 



Opposite, 29*, 30, 51*, 66, 69*. 



Orchards, 268, 288, 364, 370, 372, 392. 



Order, 283. 



Oriole, 342-343, PI. II, PI. XL 



Orion, the Hunter, 176*, 204; nebula 

 in, 204*, 205. 



Osage orange wood, 87, 149. 



Osprey, 377. 



Ovary, 70*. 



Ovenbird, 300, 3Oi*-3O2. 



Ovules, 70. 



Owl, 367, 371-375*, PI- XIV. 



Oxygen for roots, 79. 



Ox yokes, birch, 35. 



Oysters, 383. 



Pails, cedar, 112. 



Palm trees, 36. 



Palmate leaf, 28*, 30, 67*. 



