Gideon Snow, Esq., was Treasurer of the Boston Dispensary starting in 1807. Mr. Snow was elected a member of the Board, and continued in office until the annual meeting in October, when he declined a re-election. He was first elected a Manager, Oct. 8, 1807; and continued in the service of the Dispensary as Treasurer and Manager, with an interruption of two months, until Oct. 9, 1845, or a period of thirty-eight years.  The Boston Dispensary (est.1796) or Boston Medical Dispensary provided for "medical relief of the poor" in Boston, Massachusetts, from the late 18th century through the mid-20th century. In the 1960s it merged with Tufts Medical Center.  Parker Cleaveland (January 1, 1780 – August 15, 1858) was an American geologist and mineralogist, born in Rowley, Massachusetts. He was identified with the early progress of the natural sciences. After having attending the Dummer Academy in Byfield, Massachusetts, he graduated from Harvard in 1799, was tutor in mathematics there from 1803 to 1805, was chosen professor of mathematics and natural philosophy and lecturer on chemistry and mineralogy in Bowdoin College, a position which he retained until his death, although many professorships in other colleges and the presidency of his own were offered to him. He was elected an Associate Fellow of the American Academy of Arts and Sciences in 1809. He gathered a valuable collection of minerals and published a treatise on Mineralogy and Geology (1816; third edition, 1856), which earned for him the title "Father of American Mineralogy."  Stampless folded letter shows wear and tear where seal was broken.  Still, excellent Gideon Snow signature and historic communication between two renowned New Englanders.