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AMERICAN INSTITUTE OD MINING ENGINEERS 29 West Thirty-Ninth Street New York December 11, 1918.

Mr. Henry C. Frick, 5th Avenue and 70th Street, New York City.

Dear Mr. Frick" We hope that you will consider again a request that you permit the visiting members and guests of the American Institute of Mining Engineers to visit your galleries on the occasion of the forthcoming meeting of the Institute, namely on Monday afternoon, February, 17, 1919. We are very grateful for the two previous visits and there is no feature of our meeting which gives our members more pleasure and more admiration than the opportunity of seeing your pictures. If you feel that a further request would be an imposition, I hope you will be very frank in saying so. We appreciate greatly the spirit in which you allow duly accredited bodies of persons to have this rare privilege. At the present time Brigadier-General L. R. Keyon is head of one of the department of the British Ministry of Munitions, and is resident in this country. He has expressed a particular desire to see your pictures and will avail himself of the opportunity of going with us in February of you