Ingenious rat trap

• Book ID: 103084684
• Publisher: Elsevier Science
• Year: 1883
• Tongue: English
• Weight: 58 KB
• Volume: 116
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(83)90136-9

✦ Synopsis

Rapid :Formation of Mineral Veins.--Dr. Fleimmnn has found thq~ the ibrmation of mineral veins requires much less time than has usual.ly bcell supposed. About two years ago he filled a ditch with clay which contained iron. tiaving had occasion to open the ditch again, he discovered, to his great surprise, that the clay had entirdy changed its character, and had become white. Moreover, it was divided in various (lire(:tions by fissures, with sections varying fl.em ~ ~-~ to ;-of an incl b which were filled with compact iron pyrites. He supposes that the oxide of iron in the clt W w~s changed into sulphate of iron by contact with water which contained sulphate of ammonla.