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The attention of Dr. Priestley, the discoverer of so many gases, was accidentally drawn to the subject of chemistry through his living in the neighborhood of a brewery. When visiting the place one day, he noted the peculiar appearances attending the extinction of lighted chips in the gas floating over the fermented liquor. He was forty years old at the time, and knew nothing of chemistry.

The more he studied, the more vistas he caught of fields of knowledge yet unexplored, and the regret that days were only twenty-four hours long became a chronic complaint with him. One day, because the days were so short, he decided to give up algebra and geometry. Trigonometry he had not even attempted. Then he cut chemistry from his study-list, retaining only physics.

Without suspecting it, we are all suffering from lack of new departures; and life would no doubt be better if we tried a few more things, and gave the hidden, neglected possibilities a greater chance. Change as such is often fruitful of improvement, exposing to renovating air and rains the hard, exhausted soil of our souls, turning up new layers and helping on life's chemistry.

"When I began these experiments I knew very little of chemistry, and had, in a manner, no idea on the subject before I attended a course of chemical lectures, delivered in the Academy at Warrington, by Dr. Turner of Liverpool.

While in the family they are despots and not infrequently give money out at usury. The path of the education of Liubka's mind and soul was plain to him, as was plain and incontrovertible everything that he conceived; he wanted at the start to interest Liubka in chemistry and physics.

A people well acquainted with the uses of sulphur and niter, skilled in the Oriental science of chemistry, capable of manufacturing Greek fire a compound which would burn under water may well have been acquainted with some mixture resembling gunpowder.

Indeed, if spontaneous generation were possible at the beginning of life, it is possible now, and has been possible during all the ages. But no proof of it has been given. On the contrary, all efforts to secure, by chemistry, the lowest forms of life from dead matter have been without avail. Dr. Leib, of Chicago University, made earnest efforts to do so. He failed utterly.

David laughed, but did not give a reply immediately. 'Well, never mind, said the minister, 'All Christians are fools, of course that's understood. Is that all you have been learning these four years? 'I work at Latin every morning, said David, very red, and on his dignity. 'I've begun Greek, and I go to the science classes, mathematics and chemistry, at the Mechanics' Institute. Mr.

The organic compounds are vastly more sensitive to light and heat and air than are the same elements in the inorganic world. What has happened to them? Chemistry cannot tell us. Oxidation, which is only slow combustion, is the main source of energy in the body, as it is in the steam-engine.

It is true that we do not understand the underlying forces of chemism, etc., but these forces certainly exist and are the foundation of science. But the mechanism of the engine is intelligible. Our understanding of it is such that, with the forces of chemistry and physics as a foundation, we can readily explain the running of the machine.