212 
Binocular Microscope,” in which the author explained the plan by 
which he proposed to obtain an equal amount of light and an 
equal angle of vision in each tube. This he illustrated by means 
of a diagram and instrument. 
A discussion followed the reading of the paper. 
Mr. W. T. Suffolk read a paper “ On some of the Means of 
Delineating Microscopical Objects,” containing a number of 
useful and valuable hints to the worker with the microscope. 
The respective authors of the papers received the thanks of the 
meeting for their interesting contributions. 
The President, in announcing that the Annual Soiree would be 
held on March 12th, expressed his acknowledgments of the 
liberality of the Council of University College in placing the 
building at the disposal of the Committee for that occasion. 
The proceedings terminated with a conversazione. 
Ten new members were elected. 
February 26 th, 1869. The President in the chair. — Numerous 
donations to the cabinet and library were announced. 
Mr. James Jordan read a paper “ On the Preparation of Bock 
Sections for Microscopical Examination.” By means of an en- 
larged diagram he successfully explained his method of manipula- 
tion, and further illustrated his paper by exhibiting sections of 
rock in the various stages of the process. The finished specimens 
were greatly admired. 
Mr. M. C. Cooke read a paper on “ Burst Spores,” and ex- 
hibited coloured drawings showing the fungus in its many stages 
of development. 
Mr. Hailes exhibited an earthenware lamp-shade and reflector, 
of cheap construction, on the principle of the Fiddian lamp 
chimney. 
Mr. Curties exhibited a large collection of coloured drawings 
executed by Messrs. Draper, Tatem, and Clayton. 
The thanks of the meeting were given to Messrs. Jordan, 
Cooke, Hailes, and Curties, and the proceedings terminated. 
Ten new members were elected. 
The extra conversational meetings (for the exhibition of 
objects only), which have been so very numerously attended 
during the winter months, terminated on the 12th February. 
Literary and Philosophical Society of Manchester. 
Ordinary Meeting, January 26th, 1S69. 
R. Angus Smith. Ph.D., F.B.S., Vice-President, in the chair. 
“ On Microscopical Examination of Dust,” by J. B. Dancer, 
F.R.A.S. 
The author stated that he had made some microscopical exami- 
nations of dust collected in June, July, and August last, and also 
