...if the piclure sn obtained is first ptrserred se as to bear sunshine, it may be afterwards it .-li employed as an object to be copied ; and by means of this second process I Illlights and shadows are brought back to their original disposition. In this way we have indeed...

...consequently the effect is wholly altered. But if the picture so obtained is first preserved (fixed) so as to bear sunshine, it may be afterwards itself...will be found merely a difficulty of manipulation." * The communications of Mr. Talbot to the Royal Society could not fail to draw the attention of philosophers...

...altered. But if the picture so obtained is first preserved (fixed) so as to bear sunshine, it may Ъе afterwards itself employed as an object to be copied,...will be found merely a difficulty of manipulation.'" The communications of Mr. Talbot to the Royal Society could not fail to draw the attention of philosophers...

...printed by Light. positives can be obtained by printing. Thus he writes : " In copying engravings, etc., by this method the lights and shadows are reversed,...shadows are brought back to their original disposition." But the inventor did not then think of employing photography as a means of portrait-taking, except...

...Embedded in Talbot's report to the Royal Society was the following observation, offered almost casually: If the picture so obtained is first preserved, so...shadows are brought back to their original disposition. With this statement, Talbot advanced the negative-positive principle that was to become the basis for...