Document 7RvEX8qZOBX75bbZd0R2jXR2R

Na t io n a l Le a d Co mp a n y 111 BROADWAY N EW Yo R K February 5, 1925. Dr. Joseph. G. Aub, Harvard Medical School, 240 Longwood Ave., Boston 17, Mass. Dear Dr. Aub; In accordance with Dr. Thompson1s letter to you dated 30th January, I am sending you herewith check for $157.25, from the Bunker Hill & Sullivan Mining & Concentrating Co., completing the contributions to the $5,000. fund to be used in making further investigations on lead poisoning. Yours very truly. Secretary to Dr. Thompson.