2
IOWA CO. DEMOCRAT.
MINERAL POINT, - - WIS.
Moody and Sankey’s Gospel Hymns
have been a veritable gold mine for char
itable purposes. They have raised royal
ties to the amount of $1,200,000, all of
which has been expended in doing good
where good was mc-‘ needed.
Vaccinating with steel pens is recom
mended by a French physician. Ihe pens
are cheap enough to allow of a fresh one
being used for each operation, and there
by all danger of infection from the lancet
is avoided. _
Instantaneous photography has lately
been used to record the movements of the
lips in speaking, and by putting the pho
tograps in a zoetrope a deaf-mute can
easily read the words.
Aluminum is to be substituted for cast
iron in the towers of some new public
ouilding :at Philadelphia. There will
thus be a saving of some 400 tons in
weight, and the constant expense of
painting will be avoided.
French ingenuity has contrived an im
proved stone cutting saw of remarkable
efficiency— a circular -aw having its edge
set with black diamonds in the same way
as the straight Jade- but as the strain on
the diamond is ail in one direction, the
setting can be male much firmer
A method of blasting by electricity
has been tried in Sweden with good re
sults. The means consist of a voltaic arc
produced between two carbon rods placed
parallel. When the arc is moved close to
tha spot to be blasted an intense local
heat is created, resulting in expansion
that splits the rock.
