TLS, one page, 8.5 x 11, Cornell University, Center for Radiophysics and Space Research letterhead, November 10, 1986. Letter to Richard Michael Gramly of the Buffalo Society of Natural Sciences, in full: "Thank you for your letter of October 20 and for your kind invitation to speak before your natural history society. I am pleased by the invitation; however, my schedule for the foreseeable future has become so saturated with lecturing, writing and research commitments that I have been forced to curtail severely the acceptance of further obligations. I hope you will forgive me for declining." In fine condition, with scattered light creasing.
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