that for beauty, depth of tone and excellence of execution surpass
the finest steel engraving.

When Mr. Talbot's patent for the United States expires
and our ingenious Yankee boys have the opportunity, I have
not the slightest doubt of the Calotype, in their hands,
entirely superceding the Daguerreotype.

Let them, therefore, study the principles of the art as laid down in
this little work, experiment, practice and perfect themselves in it,
and when that time does arrive be prepared to produce that degree
of excellence in Calotype they have already obtained in Daguerreotype.

It is to Professor Samuel F. B. Morse, the distinguished inventor
of the Magnetic Telegraph, of New York, that we are indebted
for the application of Photography, to portrait taking.
He was in Paris, for the purpose of presenting to the scientific world
his Electro-Magnetic Telegraph, at the time, (1838,) M. Daguerre
announced his splendid discovery, and its astounding results having
an important bearing on the arts of design arrested his attention.
In his letter to me on the subject, the Professor gives
the following interesting facts.

"The process was a secret, and negociations were then in progress,
for the disclosure of it to the public between the French government
and the distinguished discoverer. M. Daguerre had shown his
results to the king, and to a few only of the distinguished savans,
and by the advice of M. Arago, had determined to wait the action
of the French Chambers, before showing them to any other persons.
I was exceedingly desirous of seeing them, but knew not