File:The industries of Japan - together with an account of its agriculture, forestry, arts, and commerce. From travels and researches undertaken at the cost of the Prussian government (1889) (14784860375).jpg

Identifier: industriesofjapa00rein (find matches)
Title: The industries of Japan : together with an account of its agriculture, forestry, arts, and commerce. From travels and researches undertaken at the cost of the Prussian government
Year: 1889 (1880s)
Authors: Rein, J. J. (Johannes Justus), 1835-1918 Rein, J. J. (Johannes Justus), 1835-1918. Japan nach Reisen und Studien. V. 2. Land- und Forstwirthschaft, Industrie und Handel. English Hodder and Stoughton, publisher
Subjects: Industries Agriculture Art, Japanese
Publisher: London : Hodder and Stoughton
Contributing Library: Getty Research Institute
Digitizing Sponsor: Getty Research Institute

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
pin, a light brown liquid exudes,and it becomes restless, does not raise itself up however, but drawsone or more oak leaves about it, spins them together over its head,and fastens its cocoon to them. In making the cocoon, it firstweaves about itself a transparent net of fine yellow-green silk,through which it can be seen industriously spinning. After aboutsix hours the net is no longer transparent, and after six or eightdays the cocoon is completed. Meanwhile the green of the innerweb has lost its intensity and become only a greenish yellow on theoutside. The cocoons are firm and of a beautiful ellipsoidal form,without shrinkage in the middle, and about three cm. long, and of7 grammes weight. Without the chrysalis its weight is from 70 to80 eg., while an empty cocoon of the Bombyx Mori is not half soheavy. Ten pounds of cocoons yield about 1 kg. of reeled silk.The top layer has a coarse thread of greenish yellow, but theunderneath has a fine greenish white silk which, after soaking in
Text Appearing After Image:
SILKWORMS ON QUERCUS SERRATA. (.Page 246. AGRICULTURAL INDUSTRIES. 209 hot water, is reeled off almost as easily as from the B. Mori.About fifteen days after the metamorphosis has taken place, thecocoons are taken from the leaves and tested. Those which areto be reeled, are placed in the warm sun or the regulated heat ofan oven, to kill the chrysalis. The best are set aside for breeding,and after from 20 to 25 days the butterflies come forth. In orderto prevent them from flying away before propagation, they are keptin pairs in bell-shaped baskets, woven from bamboo and suspended

Note About Images