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Ordinary Meeting, February 523rd, 1864. 
E. W. Binney, F.R.S., F.G.S., President, in the Chair. 
Walter Crum, F.R.S., was elected an Honorary Member 
of the Society. 
The formation of a Photographic Section was announced. 
On the motion of Mr. Sidebotham, seconded by Mr. 
Parry, it was unanimously resolved that the Sections of the 
Society, with the consent of the Council, shall have power 
to elect sectional associates, subject to rules which have been 
drawn up by the Council. The arrangement to take place 
immediately, and to continue in force until the end of the 
ensuing Session. 
Professor Roscoe stated that the question of the possibility 
of taking photographic portraits by means of the magnesium 
light was now satisfactorily settled ; he exhibited some prints 
of a portrait which Mr. Brothers and he had taken at five 
o'clock p.m. on Monday the 22nd, by burning fifteen grains 
of magnesium in the form of fine wire, at a distance of about 
eight feet from the sitter. The negative thus produced was 
stated by Mr. Brothers to be fully equal to any obtained by 
sunlight in the most favourable state of the atmosphere, the 
distribution of light and shade was most agreeable, any harsh- 
ness of the shadows being completely removed simply by 
slightly moving the wire whilst it is burning. During the 
meeting, Mr. Brothers took an excellent negative copy of Chan- 
trey’s fine bust of the late Dr. W. Henry, in the possession of 
Pbocbedinos— Lit. & Phil. Society— N®. 13.— Session 1863*64 
