8 Peoria Scientific Association. 
Electricity, its Effects on Animal and Vegetable Life; Fuel of 
the Sun; Archeology; Frictional Electricity; Mind Reading; 
Ferns; The Effect of Climatic Influences on the Mental and 
Physical Development of Man; Electricity as a Means of Com- 
municating Thought; Mind and its Relation to Matter; Popu- 
larization of Scientific Methods; Dawn of Authentic History; 
Beginning and Progress of Evolution; Illusions and their 
Causes; Modern Physical Science; Is the Supernatural Natural ? 
Physical Effects of Mental Causes; Froebel Education; The 
Properties of Matter; The Philosophy of Some Old Theories; 
Who were Our Ancestors? Cause and Effect; Man—8S1. 
Tenth Year—The God Serapis of American Politics; The 
Geographical Distribution of American Plants; The Destructi- 
bility and Utility of Water; The Life that Now is; Cyclones, 
Storms and Tornadoes; Oxidation; Mounds and Mound Build- 
ers; Personal Efforts in Promoting Longevity; Heredity; New 
England, the Old and the New; Myths, their Origin and Devel- 
opment: Unscientific Astronomy; Is This a Degenerate Age? 
The Ear and its Cure; Coal Oil, its Source and Use; The Rise 
and Development of the Healing Art; The Part that Oxygen 
Plays in the Organic World; Some of the Relations of Heat to 
the Living World; Electricity, Magnetism and Human Nature; 
Mind in Animals; Materia Medica; One of the Great Literary 
Secrets of the Nineteenth Century; Our Saxon Ancestors; The 
Microscope, its Construction and Uses; Is there Scientific Evi- 
dence for a Belief in Immortality? Customs and Manners; 
Meteorology of the Present and Past Thirty Winters Compared; 
Some Missing Links; Development; The Labor Question; The 
Progress of thought; Nature; City Government and Historical 
Sketches of Tammany Hall; Bearing of Skepticism on Science; 
Outlines of Race History—35, aggregating 167 papers and lec- 
tures which have been presented to this society since its organi- 
zation. Some of them have been light, but the majority have 
been elaborate and valuable, some of them opening a mine of — 
thought and worthy a place in the best scientific or literary 
magazines. After reading these papers it has been our custom 
to discuss the subject of them. This exercise has been a source 
of great interest and profit. 
