Railway sprayed its right of way w/poison & Blytha's mule ate poisoned grass on the right of way and died, so Blytha sued the railway. Blytha leased farm between railway & Walden's Ridge, near Elverton, & was working mule in cane mill during day, leaving it tied up 1/4 mile from railway at night. He drove schoolbus in morning. When he returned, his employee Chester Lee Johnson told him mule had broken rope & eaten poisoned grass. Exhibit: sign warning of poison/passable injury to livestock.