Book-bot.com - read famous books online for free

The Mirror of Literature, Amusement, and Instruction - Volume 12, No. 348, December 27, 1828 by Various
page 25 of 57 (43%)

_Method of Softening Cast-Iron_.

The following method of rendering cast-iron soft and malleable may be
new to some of your readers:--It consists in placing it in a pot
surrounded by a soft red ore, found in Cumberland and other parts of
England, which pot is placed in a common oven, the doors of which
being closed, and but a slight draught of air permitted under the
grate; a regular heat is kept up for one or two weeks, according to
the thickness and weight of the castings. The pots are then withdrawn,
and suffered to cool; and by this operation the hardest cast metal is
rendered so soft and malleable, that it may be welded together, or,
when in a cool state, bent into almost any shape by a hammer or vice.

W.G.C.


_Washing Salads, Cresses, &c._.

A countryman was seized with the most excruciating pain in his
stomach, and which continued for so long a period, that his case
became desperate, and his life was even despaired of. In this
predicament, the medical gentleman to whom he applied administered to
him a most violent emetic, and the result was the ejection of the
larva, and which remained alive for a quarter of an hour after its
expulsion. Upon questioning the man as to how it was likely that the
insect got into his stomach, he stated that he was exceedingly fond of
watercresses, and often gathered and eat them, and, possibly, without
taking due care, in freeing them from any aquatic insects they might
hold. He was also in the frequent habit of lying down and drinking the
DigitalOcean Referral Badge