Der Steinkohlenbergbau in Preussen und das Gesetz des abnehmenden Ertrages

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Monograph

Identifikator:: 876560443

URN:: urn:nbn:de:zbw-retromon-2470

Document type:: Monograph

Author:: Bosenick, Alfred http://d-nb.info/gnd/116266589

Title:: Der Steinkohlenbergbau in Preussen und das Gesetz des abnehmenden Ertrages

Place of publication:: Tübingen

Publisher:: Verlag der H. Laupp'schen Buchhandlung

Year of publication:: 1906

Scope:: 1 Online-Ressource (VII, 114 Seiten)

Digitisation:: 2017

Collection:: Economics Books

Usage license:: Get license information via the feedback formular.

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Document type:: Monograph

Structure type:: Chapter

Title:: Erstes Kapitel. Ueber die Technik und die Ökonomie der Förderung

Collection:: Economics Books

THE STORY OF ARTIFICIAL SILK chemist, a silkworm spins 300 yards of fine silk around itself when it is nine weeks old. It makes what we call a cocoon—a snug, warm, little sleeping-bag. It sleeps for three weeks, and then breaks out of its sleeping-bag and finds that it has become a moth—a very beautiful moth, with a thick, hairy body and large, broad wings. This resurrection is still one of the marvels of Nature. We know nothing about it. We can merely watch it happen with wondering eyes. A poor little caterpillar, creeping along with its 16 short legs, goes to sleep in a silk bag and wakes up to find itself a little moth angel, flying freely in the sunshine. As to how this is done, not a scientist in the world tan say. We do not care much for the caterpillar itself, but we are greatly interested in the resurrection robe that it spins for itself. We rob the sleeping worm of its robe. To tell the brutal truth, we kill the sleeping worm. Then we slightly roast the cocoon, dip it into warm water and unroll the silk threads. We kill hundreds of worms to make just one silk dress. be

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