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Show SCIENTIFIC SQUIBS. Experiment! are to be made at Havre to see if telephoning between vessels at anchor and the offices in the city cannot be accomplished. Herr Krupp, the great gun manufacturer manufact-urer of Essen, has submitted a plan to the Austrian government for placing the city of Vienna in connection with the Danube by canal. The result of a large number of observations ob-servations made in England tends to show that fair hair is rapidly disappearing disappear-ing in the British Isles, and that this is more marked in males than in females. An English engineer proposes making doubled shell boilers, maintaining a pressure between them. By these means he calculates that a much higher pret-ure pret-ure can be carried than is possible even with the coil boilers already in use. Photographs of seventy-eight old couples cou-ples and the same number of pictures of brothers and sisters of an age averaging that of the married people show that the latter are more like one another in appearance ap-pearance than the brothers and sisters. In England, where particular attention atten-tion has been given to the subject of electric brakes, a means has been discovered dis-covered by which a train going thirty miles an hour can by an electric brake be brought to a standstill in a space of 200 feet. Through the medium of the locomotive locomo-tive telephone signal two trains approaching ap-proaching each other establish commnni-j commnni-j cation by closing the circuit when two miles apart. The ringing of a gong warns the engineers, who, by means of the telephone, can talk to each other. Signor Chistoni has been investigating the temperature of snow at various depths. He has found that the temperature temper-ature of the uppermost layer is often considerably hither than tint layer next the ground, the difference sometimes amounting to 10 degs. centigrade. centi-grade. The new theory of the lightning rod is that it should as far as possible concentrate concen-trate the energy of the lightning on itself it-self in the quieter form of heat. Consequently Conse-quently a piece of iron wire the size of a telegraph wire is sufficient for all ordinary ordi-nary flashes, and much cheaper than the half inch copper rod or tape once thought to be requisite |