Morning journal and courier., 1893-07-11

enmuhl in the ducy of Posen wish they hadn't taken . notion to sink an artesian
 we'll. They bored down about 15O feet ised an abundant supply. That promise Is more than fulfilled. The water comes
 up the pipe in the we'll, and when the pipe is stopped 1t bubbles and oozes through the sand and earth, and Its How cannot be stopped. All the while, too, as the water rises the earth sinks and cracks the house walls and threatens to tumble them down. Scientific man say that what has happened is that these we'll borers have penetrated confined body of water which had been locked between two impsnetrable strata. The opening through the upper strata gave the water chance to yield to the weight of the 150 feet of solid earth above it, and as 1t yielded this mass of earth and rock necessarily sank.
 The makers and users of big cannon think they are smart, but their attention Is called to the fact that in 147S Mohammed H., in forming the siege of Scutari, in AL bsnia, employed fourteen heavy bombards, the Dghtsst of which threw a stone shot of 370 pounds weight, two sent shots of 500 pounds. two of 750 pounds, two of $50 pounds, one of 1 200 pounds, fvs of 1 ,500 pounds and one of the enormous weight of 1,640 pounds. enormous even In these days, for the only guns whose shot exceed the heaviest of these are our S0-ton guns, throwing 1,700- pound projectile, ,our 100- ton, throwing one of 2, 900 pounds, and the 110-ton, throwing an 1900 pound shot with high velocity. The stone shot of Mohammed's guns varied between 20 and 32 inches In diameter, about the same height as dining table; 2,5S4 of them were fired on this occasion. weighing, &C., cording to calculation of General Lef- roy's, about l. .00O tons, and were cut out of the solid rock on the spot Assuming 24 inches as the average diameter of the shot fired at this siege, the total area of the surface dressed was nearly s2. 900 square feet. At this siege the weight of the powder fired is estimated by General Lsfroy to have been 250 tons. At the siege of Rhodes in 14S0, Mohsmmed caused sixteen bssilisks, or double cannon, to bs cast on the spot, throwing balls two to three feet in diameter.
 An improved steam digger has been un- dergoing practical tests in everyday work in England this spring, and the testimony of experienced agriculturists and nechan taa rfa go bot t, ,a+ah1o That digging Is 8 more rational and more generally satisfactory method of treat ment for the soil than ploughing is an opinion neither new nor uncommon, but there has never yet been found ss.isfac- tory way of making the principal amena- ble to steam power, so that 1t could com pete with the plough. The machine, the Darby steam digger, Is driven by porta- ble engine of eight horse power, and of about the same general pattern as those used for steam ploughing. The digging apparatus, at the back end of the engine, consists of four sets of steel digging tines, six tines to the set, driven from a four throw crank shaft, so that but one set of tines enters the ground at one time. A bar containing thirteen fixed tines Is car ried in front of the movable tines, and as the digging tines throw up the earth the clods are projected against the fixed tines and broken up. The space dug over Is 14 feet wide. The diggsrs are driven at an average speed of 1s4 strokes a minute, with a working steam pressure of 120 pounds to the square inch. The depth of cut is easily adjustable. Two or three of these latest type machines have been at work In different parts of England, and with great practical success. The ma chine Is operated by two men, and 1t has done its work thoreuRhly we'll at the rate of nearly an acre an hour in 8 heavy losm coil.