Moreover, at
the point to which photography has arrived it is no longer permitted to
do things by halves.
After the memorable discoveries of Nicephore, Niepce, Daguerre, and
Talbot, photography remained for some time stationary, limited to the
production of portraits and landscapes. But for a few years past it has
taken a new impetus, and new processes have come to the surface. In the
graphic arts and in the sciences it has taken considerable place. Being
the daughter of chemistry and physics, it is not astonishing that we
require of it the precision of both. It is, moreover, through a profound
study of the reactions that gave it birth and through a knowledge of the
laws of optics that it has come into current use in laboratories. In
fact, it alone is capable of giving with an undoubted character of
truthfulness a durable vestige of certain fleeting phenomena.--
_A. Londe, in La Nature_.
* * * * *
FALCONETTI'S CONTINUOUSLY PRIMED SIPHON.
Pages:
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182