22. Birds of Northeastern United States, by Frank Chapman.— Appleton. $3.

23. Bird Life (with colored plates), by Frank Chapman.-Appleton. $2.

24. Relation of Birds to Man, by Weed and Dearborn. Lippincott. $2.50.

25. Useful Birds and their Protection. Forbush. Mass. Dept. of Agriculture, Boston, Mass. $1.

26. Food and Game Fishes, by Jordan and Everman.-Doubleday, Page and Co. $4.

27. Farmers' Bulletins (see 14 above).

28. Story of the Fishes, by J. N. Baskett.-Appleton. $.65.

HUMAN BIOLOGY

29. The Human Mechanism, by Hough and Sedgwick.-Ginn and

30. General Physiology, by W. H. Howell.-W. B. Saunders.

$4.

31. Studies in Physiology, by James E. Peabody.-The Macmillan Co. $1.10.

32. Laboratory Exercises in Anatomy and Physiology, by James E. Peabody.- Henry Holt and Co. $.60.

33. Infection and Immunity, by George M. Sternberg.- Put

nams. $1.75.

34. Pathogenic Microorganisms, by W. H. Park.-Lea Brothers and Co.

$3.75.

35. Walter Reed and Yellow Fever, by H. A. Kelly.-McClure, Phillips and Co. $1.50.

36. The Malaria Mosquito, by B. E. Dahlgren.-American Museum of Natural History. $.15.

37. Fresh Air and How to Use It.

Dr. Thomas Spees Carrington. National Association for the Study and Prevention of Tuberculosis, 103 E. 22d St., New York. $1.

38. Physiological Aspects of the Liquor Problem (2 vols.). Dr. John S. Billings et al. Houghton & Mifflin. $4.50.

INDEX

Human Biology; P. B. Plant Biology.

Agar, nutrient, for growth of bacteria, Amoeba, A. B., 170–171.

as a stimulant and narcotic, H. B., | Antenna,
67.

effect of moderate amount on dogs,

relation to life insurance, H. B., 73. | Apparatus, price list of, P. B., 173-

Appendicitis, H. B., 98.
Apple,

fruit, P. B., Figs. 37, 38.
leaves, P. B., Fig. 19.
Archegonia,

of fern, P. B., 163, Fig. 83, F.
of moss, P. B., 164, Fig. 84.
Arm, skeleton of, A. B., Fig. 48;
H. B., 146, Fig. 44.
Army sanitation, H. B., 38.
Arsenate of lead, A. B., 19, 61.
Arteries,

of fish, A. B., 131.

of frog, A. B., 111.

of man, H. B., 109, 112, Fig. 35.
Artificial crossing of related species,

P. B., 120.

Bean seed, P. B., 97-100.
Bedbug, A. B., 60, Fig. 45.
Beekeeping, history of, A. B., 33.
Bees, A. B., 31-43; P. B., Figs. 30,
31.

Beggar's ticks, P. B., 93.

Benzine as used in testing for fat,
P. B., 20.

Beverages, P. B., 128-130; H. B.,
65-75.

Bicuspid teeth, H. B., 86.
Bidens, P. B., 93.
Biennial, P. B., 158.
Bile, H. B., 101.

Bile duct, H. B., 101,
Bill of birds, A. B., 64.
Biologists, lives of, H. B., 168.

Artificial propagation of fish, A. B., Biology, definition of, P. B., 4.

140, Fig. 105.

Artificial respiration, H. B., 136.

Artificial selection, P. B., 119.
Asexual generation,

of fern, P. B., 163.
of moss, P. B., 166.
Asparagus, P. B., 127.

Assimilation, P. B., 31; H. B., 6.
Astigmatism, H. B., 164.
Athletics and tobacco, H. B., 77.
Auricle,

of fish, A. B., 132, Fig. 100.
of frog, A. B., 111.

of man, H. B., 110, Fig. 33.

Bacillus form of bacteria, P. B., Fig.
71, B, C, D; H. B., Fig. 7.
Bacillus tuberculosis, H. B., 31, Fig.
14.

Bird houses, A. B., 99, Fig. 77.
Birds, A. B., 62 -100.

Bivalve, A. B., 181.
Black-leaf-40, A. B., 61.
Blade of leaf, P. B., 55.
Blood,

of frog, A. B., 110.
of fish, A. B., 131.
of man, H. B., 7, 107.
Blood corpuscles,

of frog, A. B., 111.

of man, H. B., 7, Fig. 5.

Blood flow, stopping of, H. B., 120.
Blood plasma,

composition of, H. B., 107.

of frog, A. B., 111.

of man, H. B., 7.

Bobolink, A. B., 79, 90, Fig. 67.
Bobwhite, A. B., Fig. 62.

Bacteria, P. B., 140-145; H. B., Body, cell, P. B., 28, 29.

10-43.

as foes of man, H. B., 23-43.

as friends of man, H. B., 20-22.
definition, H. B., 11, Fig. 7.
occurrence, H. B., 14-20.
Bamboo, P. B., 49, Fig. 18.

Barbs of feather, A. B., 68, Fig. 50.

Bark, P. B., 45.

Bast, P. B., 46.

Bathing, H. B., 141.

Bean fruit, P. B., 89.

Boiling,

meats, H. B., 54.
vegetables, H. B., 55.

Books, list suggested for reference,
H. B., 207-209.

Botany, definition of, P. B., 4.
Bottle, poison, A. B., 1, Fig. 2.
Boxes for insects, A. B., 3, Figs. 4, 5.
Boys,

as destroyers of birds, A. B., 92.
as protectors of birds, A. B., 98.

Brain, H. B., 155.

Branches of animal kingdom, A. B.,
190.

of man, H. B., 109, 115-116, Fig
36.

Capsule of moss, P. B., 164.

Bread making, H. B., 55; P. B., 148. Carbohydrates,
Bread mold, P. B., 149-151.
Breastbone, H. B., 146, Fig. 44.
Breathing capacity of lungs, H. B.,
131.

Breathing, definition of, H. B., 124.
Breathing in plants and animals,

P. B., 69.

Breathing movements,

of crayfish, A. B., 154.
of fish, A. B., 134.

of frog, A. B., 102.

of grasshopper, A. B., 26.
of man, H. B., 130-131.

Breathing pores, A. B., 26, Fig. 17.
Breathing tubes, A. B., 26, Fig. 17.
Broiling meats, H. B., 54.
Bronchial tubes, H. B., 125.
Bronchitis, H. B., 135.

Brood chamber, A. B., 34, Fig. 23.
Budding of yeast, P. B., 146, Fig. 74.
Buds, P. B., 53.

of hydra, A. B., 177.
of yeast, P. B., 146.

Bud-scales, P. B., 53.

Bud-scale scars, P. B., 55.

Bulbs, P. B., 108.

Bullhead, A. B., Fig. 101.

Bumblebee, A. B., 31-33; P. B., 81.
Burbank, Luther, P. B., 122.
Burdock, P. B., 93.

Burns, treatment of, H. B., 142.
Burs, P. B., 93.

Business arguments for total absti-
nence, H. B., 74.

Butterflies, A. B., 1–22.

Cabbage, P. B., 127.

Cabbage butterfly, A. B., 14, Fig, 10.
Calyx, P. B., 71, 79, 88.
Cambium, P. B., 46, 51, 63.
Camphor, P. B., 129.

Canine teeth, A. B., 188; H. B., 86.
Capillaries,

of fish, A. B., 131.

composition, P. B., 13, 14.
in human body, H. B., 44.
manufacture of, P. B., 24, 60, 69.
meaning of, P. B., 13, 14.

uses of, in human body, H. B., 51.
Carbon, P. B., 6.

Carbon dioxid, P. B., 7, 8.

excretion of, A. B., 114, 136.
formed by yeast, P. B., 147.
formed in growing plants, P. B., 68.
in air, P. B., 11.

necessary for starch manufacture,
P. B., 23.

production of, in man, H. B., 122.
Carpet sweeper, use of, H. B., 26,
Fig. 11.

Cartilage, H. B., 144.

Castor bean seedling, P. B., Fig. 44
Catarrh, H. B., 134.

Caterpillar, A. B., 11, Fig. 6.

Cats, as destroyers of birds, A. B., 92.
Cauliflower, P. B., 127.
Cause,

of diphtheria, H. B., 34.
of pneumonia, H. B., 34.

of tuberculosis, H. B., 30.

Cell body, P. B., 28, 29; H. B., 6.
Cell division, P. B., 30.

Cell-nucleus, P. B., 28, 29.
Cell sap, P. B., 30.

Cells,

definition, P. B., 30; H. B., 6.
division of, H. B., 6, Fig. 4.

of blood, H. B., 7.

of other tissue, H. B., 9.

of plants, P. B., 27, 29, Figs. 6, 7,
H. B., 5, Figs. 3, 4.

osmosis in, P. B., 34.

Cellulose, P. B., 29; H. B., 5.
Cell wall, P. B., 28, 29.

Cement of tooth, H. B., 88.

Central cylinder of roots, P. B., 39.
Cephalothorax, A. B., 151.
Chalk, A. B., 173.

of frog, A. B., 103, 113, Figs. 82, 83. | Charts, price list of, P. B., 175-176.