423 [ 175 ] 



Page. 



Loom, Jacquart's iirvproved, ...-.--- 173 



Le Brun's, - - - - - - - - 174 



De Bergue's power loom, .,-..- 175 



Kendall's domestic do. ..--.- 176 



Luselte, or Clairette, a disease of silkworms, ----- 134 



Machinery, silk, description of, and references to, - - - 155, 177 



Moths, birth and coupling of, - - - - - • - 108 



darkness necessary for them, - , - - - - - 109 



Moulting, or change of skin in the silkworm, - - - - - oO 



MulbeiTy trees, on, -------- 42 



red, or American, and varieties of, - - - - - 42 



produce good silk, ------ 43 



white, and culture of, ------ ^^ 



propagation of, by various methods, - - - - 45 



analysis of the leaves of, ------ 50 



proportion of leaves to an acre, - - - - - 51 



required for various numbers of silkworms, - - 51 



hedges of, to form, - - - - - - ^ ^'^ 



paper, said to be proper for worms in the fifth age, - -53 



black, not equal to the white, for the United States, - ^ - 53 



Muscardine, a disease of silkworms, ------ 135 



Nankeen color to die, -------- 216 



Natural history of the silkworm, ...--- 27 



Oak leaves useful for sick worms, ...--- 135 



Oi'ange color, to die, -------- 208 



Organzine, how to steam the silk intended for, - . . 151, 152 



Passis, a disease of silkworms, ------ 133 



Patents for improved silk machinery, ------ 176 



Plants, aromatic, burning of, useless in a silkworm laboratory, - - 127 



Pink color, to die, -------- 209 



Plates, explanation of- - - - - - - " 1^5 



Poppy color, to die, ..-.---- 199 



Preparation of silk skeins after reeling, - - - - - 150 



Pupa, what, how different from the chrysalis, - - - - 32 



Quercitron bark, to die with, ------- 214 



Red color, to die, - - - - - - - 211, 213, 220 



Reeling silk from cocoons, pr<;cess of, - - - - - 143 



Reel, silk, of Piedmont, described, ------ 155 



to wind the skeins from bobbins, ----- 158 



Ribbon looms, improved, - - - - - - ■ ^^^ 



Silkworms, na.ural history of, ------- "T 



duration of the life of, - - - - - - 34 



varieaes of, - - - - - - 35 



of India, --------36 



China, - 41 



North America, ------ 42 



South America, - - - - - - 41 



whole process of hatching and rearing the common kind - 61 



appearance of, when newly hatched, - - - - 64 



removal of, from the room where hatched, - - -69 



rearing of, in tlieir four first stages, - - - - 71 



cleanliness and fresh air essential to their health, - - 54, 97 



noise stops their syjinning the cocoons, . - - - 104 



preparations for their rising on the cabins, - - - 99 



separation of those which will not rise, - - - - 102 



do not degenerate in the United States if well kept, - - 112 



abstract and condensed view of the art of rearing, - - 120 



diseases of, - - - - - _ " , " l'*^ 



Space in square feet, occupied by worms, from an ounce of eggs, in different 



ages, (see also the table, page 180,) - - - - - 113 



Steam, appai-atus for heating water by, - - - * . - 138 



