Ill 
PHOTOGRAPHIC SECTION. 
January 5th, 1865. 
Joseph Sidebotham, Esq., in the Chair. 
Mr. E. C. Buxton was elected an Ordinary Member. 
Some enlarged photographs by Dr. Van Monkhoven were 
exhibited. The original negatives were four inches square, 
and some of the enlargements upwards of forty-four inches. 
Some specimens of panoramic pictures taken by Mr. J. R. 
Johnson with his pantascopic camera were exhibited. In 
this camera the lens turns on its optical centre, depicting 
the objects composing the view on the screen or collodionised 
film, which moves tangentially in a contrary direction to the 
motion of the lens, and thus successive portions of the view 
are received by successive portions of the moving plate. 
Mr. Dancer, F.R.A.S., read a paper “ On the exhibition, 
stereoscopically, of Photography on a large scale.” Diagrams 
were exhibited of the single image prism stereoscope, the 
double reflecting stereoscope, and the opera glass stereoscope 
instruments devised by Sir David Brewster for uniting bin- 
