Advice to beginners in silk-culture, 8 | 
Alteration in value of silk products, 6 
Anthrenus injuring cocoons, 47 
Ants as enemies of the worms, 28 
injuring cocoons, 48 / 
Arches for spinuing of cocoons, 29 
Atmosphere in which wintering eggs should be | 
kept, 17 
Automatic reels, 9 
Bag for gathering mulberry leaves, 24 
Black Mulberry tree, 56 
Botrytis bassiana, 33 
Broussonetia papyrifera, 57 
Canes for constructing shelves, 21 
Cells used for egg-laying, 44 
Chain ferment in flaccid clrysalis, 38 
Chambon system of reeling, 51 
Cleanliness in rearing worms, 26 
Choking the chrysalis, 47 
Chrysalis of Silk-worm, 14 
Description of, 14 
Examining, for flaccidity and pébrine, 42, 43 
Methods of choking, 47 
Cocoon of Silk-worm, 14 
Description of, 14 
~ Constricted, 14 
Non-constricted, 14 
Cocooning ladder, 24 
Cocoons: 
Assorting, 31, 49 
Cooking, brushing, and purging, 50 
Double, 30 
Form of, indicating sex of moth, 44 
Gathering, 30 
Loss of weight in drying. 31 
Profits of producing, 6 
Sale of, in the United States, 3 
Selecting for reproduction, 43 
Treatment of, before emergence of moth, 44 
Weight of fresh, 52 
Congressional aid to silk-culture experiments, 8 
Constituents of silk in the cocoon, 55 
Constricted cocoons, 14 
Cost of reeling, 6 
Davril cocooning ladder, 25 
Dermestes injuring cocoons, 47 
Diseases of the Silk-worm, 32 
Flaccidity, 36 
_ Flacherie, 36 
Gattine, 32 
Grasserie, 40 
Muscardine, 33 
Pébrine, 34 
INDEX. 
Double cocoons, 30 
| Egg of Silk-worm, 11 
Development of, 11 
Egg-laying of the moth, 44 
Eggs, Market for, 7 
Microscopic examination of, 36, 46 
Number of, laid by a single moth, 12 
Wintering and hatching of, 17 
Elasticity and tenacity of raw silk, 54 
Empusa musce, 33 
Enemies of Silk-worms, 28, 33 
Ants, rats, mice, 28 
Insect parasite, 32 
Flaccidity, a disease of Silk-worms, 36 
Causes favorable to its appearance aud spread, 
39 
External symptoms, 36 
Internal symptoms, 37 
It is contagious and indirectly hereditary, 40 
Microscopical examination of chrysalis, 42 
Theories of its cause, 39 
Flacherie, see Flaccidity 
Filature station at New Orleans, 8 
Filatures, establishment of, in the United Studer 8 
Food-plants of the Silk-worm, 56 
Constituents of the Mulberry leaf, 57 
Directions for planting Mulberry trees, 56 
Lettuce leaves for young worms, 59 
Native and imported Mulberry trees, 56 
Osage Orange, 3, 58 
Paper Mulberry, 57 
Varieties of White Mulberry, 57 
Food-supply in rearing worms, 26 
Fresh air in rearing rooms, 28 
Gathering the cocoons, 30 
Gattine, a disease of Silk-worms, 32 
Glossary of terms used, 60 
Gluten, amount of, in reeled silk, 55 
Government aid to silk-culture in the United 
States, 8 
Grasserie, a disease of Silk-worms, 40 
Maillot’s description of the disease, 40 
Hatching the eggs, 18 
Hibernating the eggs, 18 
Hygrometric properties of silk thread, 55 
Implements that facilitate the raising of silk, 20 
Bag for gathering leaves, 24 
Cocooning ladder, 24 
Perforated paper for transferring worms, 23 
Room for rearing worms, 20 
Shelves, 20 . 
Standard for holding shelves, 22 
Transfer tray, M 
