Fire in a Leather Board Mill. A recent fire destroyed the Jenkins Bros, leather board mill at Bridgewater, Mass., an old grist mill across the river used as a storehouse, a large storehouse filled with goods ready for shipment, the limehouse, a large number of bags a quantity of paper and woodpulp and the electric light plant. Only a small storehouse in the rear was saved, the loss being from $80,000 to $100.000. The cause of the fire was set down to spontaneous combustion of the leather in a pile of sacks of chips stored out of doors under the 5.000-gal. water tank which supplied the sprinkler-system. The fire weakened the supports of the tank, which fell, putting the system out of commission. The force-pumo was put in operation. but proved inadequate, the fire having gained headway with great rapidity. When the watchman found it impossible to do any effective…