A short Scientific American news item reporting that one owner of the Pemberton Mill has bought out his partner and plans to rebuild the mill promptly with a stronger building. It attributes the collapse to poorly cast iron columns, whose cores floated in the mold and left one side very thin, and to columns straightened while hot, which hid the defect. It cites testimony that a spinning frame fell through the floor first, and notes that the architect's specifications called for far greater strength.