Transcriber’s Notes:
Text enclosed by underscores is in italics (_italics_), and text
enclosed by equal signs is in bold (=bold=).
The whole number part of a mixed fraction is separated from the
fractional part with -, for example, 2-1/2.
Additional Transcriber’s Notes are at the end.
How to Become an Inventor.
CONTAINING
Experiments in Photography, Hydraulics,
Galvanism and Electricity,
MAGNETISM, HEAT,
AND THE
Wonders of the Microscope.
ALSO GIVING
Instruction in the Use of Tools
AND
OPTICAL INSTRUMENTS.
NEW YORK:
FRANK TOUSEY, Publisher,
29 WEST 26TH STREET.
* * * * *
Entered according to Act of Congress, in the year 1898, by