ISBN: 1130787958

Paperback, [EAN: 9781130787955], RareBooksClub.com, RareBooksClub.com, Book, [PU: RareBooksClub.com], RareBooksClub.com, This historic book may have numerous typos and missing text. Purch… Altro …

Paperback, [EAN: 9781130787955], RareBooksClub.com, RareBooksClub.com, Book, [PU: RareBooksClub.com], RareBooksClub.com, This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1886 Excerpt: ...from large establishments are, however, apt to be untrustworthy, and it is well for all silk-raisers to provide their own seed. The precautions to be taken in choosing cocoons for reproduction are set forth in Chapter VI. Kept at a temperature of about 70 F.,new silk cocoons lose, through the giving off of humidity by the chrysalides, a material proportion of their weight. Accordiug to Dandalo the loss in 100 pounds during the first ten days amounts to about 7£ per cent. The amount of humidity in the atmosphere naturally affects this result. The loss continues until the cocoons are thoroughly dry, when it will be found that they have diminished to one-third of their original weight. 'Dandalo states that 100 pounds of cocoons will sutler the losses indicated by the following table: Pounds. Weight when taken from the brush and after the floss has been removed 100. 0 Weight one day after 99-1 Weight two days after 98.2 Weight three days after 97.5 Weight four days after 97.0 Weight five days after: 96.6 Weight six days after 96.0 Weight seven days after 95.2 Weight eight days after-94. 3 Weight nine days after 93.4 Weight ten days after 92. 5 CHAPTER V. ENEMIES AND DISEASES OF THE SILK WORM. As regards the enemies of the Silkworm but little need be said. It has been generally supposed that no true parasite will attack it, but in China and Japan great numbers of the worms are killed by a disease known as "uji," which is undoubtedly produced by the larva of some insect parasite. It is needless to speak farther of this parasite, as it is unknown in America. There are, however, several forms of disease against which it is necessary to guard and of which it is therefore necessary that silk-raisers should have an intimate knowledge. Through the multit..., 5035, World, 15812171, Civilization & Culture, 3825131, Expeditions & Discoveries, 4992, Jewish, 6343224011, Religious, 16244141, Slavery & Emancipation, 15812211, Women in History, 9, History, 1000, Subjects, 283155, Books<

ISBN: 1130787958

[EAN: 9781130787955], Nouveau livre, [SC: 12.23], [PU: RareBooksClub], CHARLES VALENTINE RILEY,WORLD, This item is printed on demand. Paperback. 26 pages. Dimensions: 9.7in. x 7.4in. x 0.… Altro …

[EAN: 9781130787955], Nouveau livre, [SC: 12.23], [PU: RareBooksClub], CHARLES VALENTINE RILEY,WORLD, This item is printed on demand. Paperback. 26 pages. Dimensions: 9.7in. x 7.4in. x 0.1in.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1886 Excerpt: . . . from large establishments are, however, apt to be untrustworthy, and it is well for all silk-raisers to provide their own seed. The precautions to be taken in choosing cocoons for reproduction are set forth in Chapter VI. Kept at a temperature of about 70 F. , new silk cocoons lose, through the giving off of humidity by the chrysalides, a material proportion of their weight. Accordiug to Dandalo the loss in 100 pounds during the first ten days amounts to about 7 per cent. The amount of humidity in the atmosphere naturally affects this result. The loss continues until the cocoons are thoroughly dry, when it will be found that they have diminished to one-third of their original weight. Dandalo states that 100 pounds of cocoons will sutler the losses indicated by the following table: Pounds. Weight when taken from the brush and after the floss has been removed 100. 0 Weight one day after 99-1 Weight two days after 98. 2 Weight three days after 97. 5 Weight four days after 97. 0 Weight five days after: 96. 6 Weight six days after 96. 0 Weight seven days after 95. 2 Weight eight days after-94. 3 Weight nine days after 93. 4 Weight ten days after 92. 5 CHAPTER V. ENEMIES AND DISEASES OF THE SILK WORM. As regards the enemies of the Silkworm but little need be said. It has been generally supposed that no true parasite will attack it, but in China and Japan great numbers of the worms are killed by a disease known as uji, which is undoubtedly produced by the larva of some insect parasite. It is needless to speak farther of this parasite, as it is unknown in America. There are, however, several forms of disease against which it is necessary to guard and of which it is therefore necessary that silk-raisers should have an intimate knowledge. Through the multit. . . This item ships from La Vergne,TN.<

2012, ISBN: 1130787958

Paperback, [EAN: 9781130787955], RareBooksClub.com, RareBooksClub.com, Book, [PU: RareBooksClub.com], 2012-03-04, RareBooksClub.com, This historic book may have numerous typos and missing… Altro …

Paperback, [EAN: 9781130787955], RareBooksClub.com, RareBooksClub.com, Book, [PU: RareBooksClub.com], 2012-03-04, RareBooksClub.com, This historic book may have numerous typos and missing text. Purchasers can download a free scanned...., 65, History, 271237, Ancient History & Civilisation, 276416, Archaeology, 271343, Britain & Ireland, 271480, Europe, 271565, North America, 271411, Military History, 772016, Maritime History, 771710, Political History, 772148, Social & Economic History, 772162, Cultural History, 771714, Religious History, 271389, Other Historical Subjects, 771724, Essays, Journals, Letters & True Accounts, 271605, Reference, 771718, World History, 771708, Countries & Regions, 4119251, Academic History, 1025612, Subjects, 266239, Books<

ISBN: 9781130787955

Charles Valentine Riley, Paperback, English-language edition, Pub by General Books LLC Books, History~~General, The-Mulberry-Silkworm~~Charles-Valentine-Riley, , , , , , , , , , General B… Altro …

Charles Valentine Riley, Paperback, English-language edition, Pub by General Books LLC Books, History~~General, The-Mulberry-Silkworm~~Charles-Valentine-Riley, , , , , , , , , , General Books LLC<