ILLUSTRATIONS. 



Page. 



Fig. 1 — Adult silkworm 7 



2. — Silk glands in a mature worm 8 



3.— The chrysalis 10 



4. — The moth — male and female 10 



5. — Light movable shelves 12 



6. — The rearing room 13 



7. — Hot water incubator 15 



8. — Net used in changing beds 20 



9. — Perforated pajjer used in changing beds in the second and third ages. 21 



10. — Arrangement of spinning i)laces 26 



11. — Device for removing floss from cocoons 27 



12. — Worms affected with flacherie dying in the brush 29 



13. — ^Worm which died from flacherie putrefying after death 30 



14. — Worm emaciated from gattine after the fourth molt 30 



15. — Calcinated worm 31 



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