THE NEW-YORK
S Gle n TIFIC A M E RIG A n
THIRD YEAR.
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This popular Scientific and Mechanical Journal
(Which has already attained the largest circulation
Of any weekly paper of the kind in the world, }
will commence its Third Volune on Saturday, Sept.
25th.


Each number of The Scientific American contains
from FIVE to original Mechanical Engravings,
a catalogue of American Patents issued from the
Patent Office each week notices of the progress of
all new mechanical and scientific inventions in
strucons in the various Arts and Trades, with En-
CRAVINGS; curious philosophical and chemical ex-
periments; the latest rail road intelligence in Eu
rope and America all the different mechanical
movements published in series, and illustrated with
more than Hundred Engrauings sc. sc.


1t is in fact paper that merits the patronage of
all mechanics and manufacturers throughout the
United States, and should be in the hands of every
one that feels an interest in the advancement of
Mechanical or Scientific improvements in this
country. F....t .... -......... -.


1t is published in Quarto Form, conveniently a.
dapted to binding, and furnished to Country Sub
scribers at the o,o price Of Too Dollars Yea,-One
Dollar in aduance, and the remainder in Six Months.
Address, MUM & CO. Publishers,


l2S Fulton Street, New York,