Show scientific miscellany according to dr emil relics of an extinct race of a much higher culture than not belongs to any native tribes have been found in the interior of africa among the remains are seen workings of ancient mines ome even of gold and the ruins of rude fortifications these evidences remind the great of the african empire of Monoma tapa as mapped on old portuguese charts the announcement that balmain lumino jB is soon to lie offered in the market hag aroused much interest in england the preparation is based upon the well known phosphorescent property of Bul phida of calcium the principle being that lately applied to producing self luminous clock dials articles coated with the paint continue to omit a gradually decreasing pho for some houra after exposure to a strong light and it is claimed that property will be retained fo or ten years the range of application of this anven tion is greab bu it must prove cs specially ally valuable in spirit vaults magazines mines and all places where or unary lights can only be used at considerable rik it has been suggested that the time may como anen gas and electricity will bo superseded by the use of coaling for walls which during llie doy will absorb sufficient light to continue luminous throughout the night carbonic acid when pure is a active and fatal poison destroying life and extinguishing flame not from oxygen as is often but from the presence of active qualities which ore destructive to life and to combustion if in baled haled pure instantaneous death results the is a new scientific instrument for determining the direction from which sound waves come aside from its value in acoustic investigations it mast prote practically useful at acu ecu in locating fog signals A remarkable peculiarity of thu natives of southern aliina is that the great too of each foot is separated from the others like the thumb of the hand aej can bo used in much the bame manner although not to an eidal extent the surface ol 01 great salt lake lias risen eleven feet since 1867 prof king believes this rise to bo due not to the cultivation of the surrounding country but to a climatic oscillation that began about and which i the first of its kind and has occurred within at least two hundred and fifty years ammonia BO useful in agriculture and the art is a compound of nitrogen and hydrogen and for a long time soma method of utilizing the nitrogen of the air in its production has been ought the desired has at last been attained by two european chemists who cause hydrogen to combine with atmospheric nitrogen in suitable apparatus by the aid of electricity the economy of this process remains to be shown A quantity of flour was exposed by a french experimenter to a pressure of three hundred tons reducing it to one fourth its original bulk A portion of it was taci placed in cans and sealed the same being dona bome pressed flour A year afterward the cans were opened when the hour was found to bo spoiled while the posed ws n excellent preservation |