LETTER OF TRANSMITTAL RAYMOND A. PEARSON, President of the University of Maryland. Sir: I have the honor of presenting herewith the twelfth of the general reports of the Maryland Geological Survey containing a series of articles embodying the results of investigations carries out by the Survey. I would call particular attention to that on Molding Sands which may lead to the establishment of a valuable industry in the State. Yours very respectfully, EDWARD B. MATHEWS, Johns Hopkins University, Baltimore, September, 1927. |