354 CANADIAN INSTITUTE. 



LECTURES AND PAPERS. 

 On Sound: By Dr. Kcenig, Paris, France, and Prof. Loudon, University 

 College, Toronto. 



1. — Mechanism of the Ear : Noises, Notes and Tones. (Sept. 15th, 1882.) 



2. — Qualities of Sounds : Pitch, Intensity and Timbre. (Sept. 18th, 1882. ) 



3. — Methods of Studying Vibrations : Determination of Pitch. (Sept. 

 20th, 1882.) 



4. — Determination of Intervals : Scales, Propagation of Sound, Communi- 

 cation of Vibrations, Composition of Vibrations. (Sept 22nd, 1882.) 



5. — Phcenomena produced by the Co-existence of Two Sounds : 

 Interference, Beats, Sounds of Beats. (Sept. 25th, 1882.) 



6. — Timbre of Sound : Analysis and Synthesis. (Sept. 27th, 1882.) 

 Reindeer and Mammoth Age of Southern Europe. (Dr. Daniel Wilson, 



President of the University of Toronto, January 19th, 1883.) 

 The Hygiene of the Eye. (Dr. Reeve, January 19th, 1883.) 

 The Germ-Theory of Disease. (Prof. Ramsay Wright, University College, 



Toronto, January 26th, 1883.) 

 Richard Wagner and the Music of the Future. (Prof. W. Waugh Lauder, 



February 2nd, 1883.) 

 Science and Progress. (The President's Inaugural Address, November 4th, 



1882.) 

 Some Laws of Phonetic Change in the Khitan Languages. (Prof. Campbell, 



of Montreal ; read for him by Prof. Loudon, November llth, 1882.) 

 The Presence of Tellurium, in connection with Gold, Silver and Lead, in 



Specimens of Ore from Lake Superior. (Prof. Ellis, School of Practical 



Science, Toronto, November llth, 18S2.) 

 Anthropological Discoveries in Canada. (C. A. Hirschfelder, Esq., November 



18th, 1882.) 

 The Transit of Venus. (Mr. Carpmael, Superintendent Toronto Observatory, 



November 25th, 1882.) 

 The Classification of Languages. (Mr. W. H. Vander Smissen, December 



2nd, 1882.) 

 The Ophidians of Texas. (Prof. Croft : read for him by Dr. J. E. White, 



December 9th, 1882.) 

 Description of an Interesting Historical Monument of the 15th Century. 



(Dr. Daniel Wilson, President of the University of Toronto, December 



16th, 1882.) 

 A Demodex in the Skin of a Pig. (Prof. Ramsay Wright, University College, 



Toronto, December 16th, 1882.) 

 Description of a New Micro-photo-graphic Apparatus, and a Resume of Cohn's 



Experiments on Trichinse. (Prof. Ramsay Wright, January 20th, 1883.) 

 Evidence of Water-action on the Surface of the Moon. (Mr. A. Elvins, 



January 20th, 1883.) 

 Some Reasons Why so many Persons Die of Consumption, (Dr. P. H. 



•Bryce, January 27th, 1883.) 

 On Spelling Reform. (Mr. W. Houston, February 3rd, 1883.) 



