September 21, 1899. X. W. GILDER, EDITOR. X. U. JOHNSON, ASSOCIATE EDITOR. C. C. BUEL, ASSISTANT EDITOR. Mr. John Muir, Martinez, Cal. My dear Muir, The inclosed letter has just cone back to me through the mail. I hope it is not too late for it to accomplish its purpose of accenting my introduction to you of Mr. and Mrs. Seton Thompson. I am in your debt for a very nice letter of the 16th of August, and thank you heartily for your wish that I might have been with you. I thought of you many a time during the trip. Burroughs is going to give us his impressions of the great Northwest, and we are to print the poem on The Golden Crown Sparrow, which we think is his best. My family have passed a quiet but very agreeable summer at East Hampton, ...