e machine turned about and reset for the return cut, at end of the ditch. The saving of time effected by this improvement is above 50 per cent, so that the cost and labor of cutting a ditch is reduced more than half. John P. Moore, of DeMossville, Ky., has patented a Mill- stone Balancing Device,… … A Ventilator patented by ting to the Gardener’s Month- R.8. Grigsby, of Fayetteville, ly, says:—‘‘ Perhaps same* of
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