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Various

"A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures."

Applications for the whole right, or
for territorial rights, should be addressed to the latter at Pittsburgh,
Pa.
* * * * *
COMMISSIONER OF AGRICULTURE.--The Senate on Friday, the 29th ult.,
confirmed the nomination of the Hon. Horace Capron as Commissioner of
Agriculture to fill the position made vacant by the death of Isaac
Newton, the former head of the Department.
* * * * *
It is estimated that 10,000,000 feet of sawed lumber is frozen up in
the docks at Bangor, Maine, three fourths of which is sold and waiting
shipment.
* * * * *


Correspondence

_The Editors are not responsible for the opinions expressed by their
correspondents._


Improved Method of Securing Cutters on Boring Bars.

MESSRS. EDITORS:--Thinking it may be of use to some of the readers of
your invaluable paper, I have taken the liberty of sending you a sketch
of a new mode of securing the cutter in a boring bar or pin drill. Where
the cutters are secured, as usual, by a key, all mechanics know that it
is very difficult to set a cutter twice alike; and the notch, which
is filed in the cutter, to prevent it from moving endways, is a great
source of weakness, often causing the cutters to crack in hardening, as
well as after they are put to work.


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