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4 I sent you also, separately, a copy of my last paper on trees of the lower Wabash Valley. Am sorry that I haven't a copy
of the first paper to send you. Hoping to have the pleasure of receiving a letter from you, I am, with kind regards Very
truly? yours Robert Ridgway 1 Brookland, D.C. February 15, 1900. Dear Mr. Muir: The receipt of a copy of Mr. Keeler's
charming little book on Calfornian birds which you have had the kindness to send me, has reminded me that I have not kept
my promise to send you some photographs of Indiana trees. These were promised you in a letter which I wrote you not very long
after my return from the Alaskan trip, though I do not know whether you received my letter or not, not having heard from you.
Perhaps you had been waiting for the pictures before writing. Well, I have many 02665 5 List of photographs sent to
Mr. Muir. 1. Sycamore (Platanus occidentalis). Gibson Co., Indiana, opposite Mt. Carmel, Illinois. Circumference, above
swell , 30 ft., at ground 42 ft; height (mean of several measurements, by triangulation, by shadow, and by dendrometer), 160
ft.; spread of top 134 x 112 ft. 2. Sycamore. A tall-shafted specimen in Richland Co., Illinois. 3. Tulip Tree (Liriodendron
tulipifera). Knox Co., Indiana. Circumference, above swell , 18 ft. (not an unusually large specimen. There are few now of
this size, but formerly? there were many very much larger.) 4. Tulip Trees. The larger one has had top broken off by wind.
The smaller one remarkable for its slender growth. (Knox Co., Indiana.) 5. Sycamore, almost completely covered by Virginia
Creeper (Ampelopsis virginica). (Gibson Co., Ind.) 02665