22 
INDEX 
References 
Lingual ribbon.190 
Linseed oil, source of . . . . 223 
Lions.137 
Lipoid.479 
Lips of frog.85 
Liquor license required 506 
List of subjects studied by 
Bureau of Entomology . 525 
Litmus, dye from lichen . . . 326 
Liver.409 
Liver flukes.176 
Liverworts.9, 331 
Lizards.99, 101 
horned toad, example of . 101 
Lobes, olfactory.88 
Lobster protected by law 520 
Location of nerves in man . 466 
Lockjaw.511 
Locomotion, of fish .... 72 
of starfish . . . . '. . . 171 
Locust, a tree.299 
Loment, a fruit.237 
Longitudinal muscles of earth¬ 
worm .179 
Louse, carrier of disease . . 514 
Lumber, from gymnosperms . 346 
from hardwood trees . . . 351 
furnished by walnut family . 297 
how cut.363 
Lumbering, compared with 
forestry.347 
operations, forests destroyed 
by.363 
Lungs, of frog.87 
of birds.109 
of man.444 
Luxuries, fleshy fruits . . 234 
of food from rose family . . 298 
Lymph. 454 
Lymphatic circulation .... 454 
Lymphatics.455 
M 
Mackerel, a bony fish ... 71 
Madreporic plate.170 
Maggots, larvae of flies ... 28 
Magnesium, a salt.412 
Magnesium sulphate in Pas¬ 
teur solution.322 
Mahogany, use of, as furniture 
veneer.352 
are to pages 
Malaria.493 
caused by mosquito . .55, 493 
protozoan disease . . 489, 493 
Malarial parasite .... 55, 493 
Mallow family, importance of 299 
Mammalia, classified .... 9 
discussed.125 
number of. 9 
report on.135 
summary of.139 
Man, as an animal.399 
example of-mammal ... 9 
Mandibles of grasshopper 23 
Mandrake, medicinal plant . 256 
Mantle of mollusk.185 
Maple sirup.351 
trees, products of ... 351 
Maple wood, use of ... 352 
Marchantia.330 
Marrow of bone.436 
Marsh hawk, partly harmful . 115 
Martins, mosquitoes eaten by . 56 
Massasauge, a rattlesnake . . 101 
Masts, use of gymnosperms for 346 
Material for clothing .... 376 
Matter, organic and inorganic . 10 
Maturity, a period of l ife . . 402 
May beetle, harmful insect. . 34 
May flies, member of order 
Ephemeridae.29 
Meadow lark, food of. . . . 117 
nest of.112 
Measles, probable cause of . . 489 
Measuring worms, caterpillars 28 
Meat 
indirect product of plants . 376 
lean, use of, as food . . . 416 
Mechanical tissues of pteris 
stem.334 
Median fins of fish ... 71, 72 
Medicinal members of crow¬ 
foot family, list of . . . 297 
Medicines furnished by crow¬ 
foot family.297 
Medulla, of frog.89 
of man.481 
Medullary layer of kidney . . 458 
Medullary rays, of pine . . . 342 
Medullary sheath of nerve . . 468 
Medusa, described.165 
hy droid.164 
