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_ Spinneret: A tube projecting from the lower lip, and through which the silk issues. 
Organzine: Highly twisted thrown silk used in the woof in weaving. 
Ovipositing : Laying the eggs. 
Pébrine: A Silk-worm disease characterized in the text, Chapter V. 
Pod: The compact portion of the cocoon, which is used for reeling purposes. 
Polyvoltins: A term applied indiscriminately to all races which produce mors than one brood ina 
year. 
Pro-legs : The ten non-jointed legs under the sixth, seventh, eighth, ninth, and last joints of the bod 
of the worm. : 
Psorospermie : Scientific name for the floating corpuscles in the bodies of worms affected by pébrine. 
Quadrivoltins : Those races which produce four broods in one year. 
Raw silk: Silk reeled from the cocoons before being thrown and woven. 
Rosea: A variety of the White Mulberry. 
Seed: The eggs in bulk. 
Sericaria : A generic name proposed by Latreille, and to which the Silk-worm is referred by modern 
writers. 
Sickness : The period of molting. 
Spiracles : The breathing-holes of the insect; one row of nine down each side of the body. 
Spores: The germinating seed of fungi. 
Tavellette: A small pulley used in the Italian system of reeling. 
Thrown silk: Silk which has been submitted to the operations following spinning or reeling. It is 
classed as tram and organzine. 
Trachea: The breathing-tube of an insect. 
Tram: Slightly twisted thrown silk used in the warp in weaving. 
Transformation : The change from one state to another, as from worm to chrysalis or from chrysalis to 
moth. 
Trevoltins : Those races of Silk-worms of which there are three broods in one year. 
Vitellus: The yolk of an egg. 
Whites: Those varieties having white cocoons. 
Yellows: Those varieties having yellow cocoons. 
