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Such systems are in force in France and Canada. In the event of war the independent striking air force could thus count upon a large proportion of civil reserve pilots and machines. Air, allied to chemistry and the submarine, will be a difficult combination to withstand.

First and foremost we have to think of Mathematics, of Arithmetic and Geometry and Optics and Acoustics and Astronomy, but we must not forget also their later and perhaps not wholly so successful advances in Physics and Chemistry, in Botany and Zoology, in Anatomy and Physiology.

"These men have iron bones! No wonder he could bend that crowbar! It would be as easy as it would for you or me to snap a human arm bone!" "But, wait a minute!" Morey objected. "How could iron grow?" "How can stone grow?" countered Arcot. "That's what your bones are, essentially calcium phosphate rock! It's just a matter of different body chemistry.

During dinner and supper-time he used to try to turn the conversation upon physics, geology, or chemistry, seeing that all other topics, even agriculture, to say nothing of politics, might lead, if not to collisions, at least to mutual unpleasantness. Nikolai Petrovitch surmised that his brother's dislike for Bazarov was no less. An unimportant incident, among many others, confirmed his surmises.

Jacques Ribot, esteemed one of the greatest world authorities on agricultural chemistry, who had been seduced from his two thousand a year in France by the six thousand offered by the University of California, who had been seduced to Hawaii by the ten thousand of the sugar planters, Dick Forrest seduced with fifteen thousand and the more delectable temperate climate of California on a five years' contract.

With Senator Semenoff and Prince Gregory Galitzin I had very interesting talks on their Asiatic travels, and was greatly impressed by the simplicity and strength of Mendeleieff, who is certainly to-day one of two or three foremost living authorities in chemistry.

Now it is possible, of course, to take the view advocated by Professor J. S. Haldane, who contends that physiology is not theoretically reducible to physics and chemistry.* But the weight of opinion among physiologists appears to be against him on this point; and we ought certainly to require very strong evidence before admitting any such breach of continuity as between living and dead matter.

As they went, they talked of history, or politics, or chemistry, of literature, or physics, or morality. At sundown they returned, to find lights and cards on the tables, and they made parties of piquet, interrupted by supper. At half-past ten the game ends, they chat until eleven, and in half an hour more they are all fast asleep.

In the days of yore children were not all such clever, good, sensible people as they are now. Lessons were then considered rather a plague, sugar-plums were still in demand, holidays continued yet in fashion, and toys were not then made to teach mathematics, nor story-books to give instruction in chemistry and navigation.

A philosopher has pointed out that what we share is vastly greater than what separates us. We walk upon and must know the same earth. We live under the same sun and stars. In our bodies we are subject to the same laws of physics, biology and chemistry. We speak the same language, and must shape it to our use.