It is a well known fact to us that many of our countrymen have an opinion that the French Academy of Sciences, and the British Royal Society have standing offers of great prizes for the discovery of perpetual motion, and squaring the circle. With respect to the former problem, at the last meeting of the French Academy of Sciences, a letter was read from the American Consul, Mr. Goodrich, requesting, in the name of one of his fellow- citizens, information relative to a prize said to have been prtlposed by the Academy for the discovery of perpetual motion. It was unanimously " Ordered, That Mr. Goodrich be informed the Academy has not only proposed no such prize, but it has adopted a rule that no communication relative to such a subject be taken into consideration.