FIRE RESISTANT HOLLOW CONCRETE BRICKS. At Carbon, Ind., recently all the business portion of the town was burned, except the State Bank building, which is built entirely of hollow concrete blocks. The bank building stands on a corner, and on the three corners adjacent stood one and two-story brick structures, which were totally destroyed, as was another brick building four feet from the bank. This is another proof of the value of the use of hollow concrete bricks as a fire-resistant material. By collapse of the main water tank at the Hayward mills, Franklin, Mass., its contents—25,000 gallons—flooded the lower part of the town. The destruction of the tank was total, and its loss was estimated at $3,000. It was about twenty feet high and fifteen feet in diameter.