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Gray Herbarium Archives, Harvard University, Cambridge, Massachusetts. 84.04.16

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Ferdinand von Mueller to Asa Gray, 1884-04-16. R.W. Home, Thomas A. Darragh, A.M. Lucas, Sara Maroske, D.M. Sinkora, J.H. Voigt and Monika Wells (eds), Correspondence of Ferdinand von Mueller, <https://vmcp.rbg.vic.gov.au/id//letters/1880-9/1884/84-04-16-final.odt>, accessed June 4, 2026

16/4/84
An irreparable loss indeed, dear Professor Gray, that of Dr Engelmann!
1
George Engelmann died on 4 February 1884.
So the last of the illustrious four is gone, who studied as close friends together in a German University, — Schimper, Alex. Braun, Agassiz, Engelmann.
We all, not so very long ago, admired his active field-work in the interest of forest-conservancy, not without some misgivings as to his overstraining his bodily strength at so venerable an age. I hoped, he would follow Chevreul in longevity!
2
The French chemist Michel Chevreul was still active at that time, despite being 98 years old.
It is not so very long ago, since I had from him a letter
3
Letter not found.
concerning a very abnormal form of , which I had sent him. Perhaps you will do me the kindness, when writing to his son, to express my condolence.
Your elaboration of the vast mass of N. Amer.
4
A. Gray (1884) includes his systematic revision of the North American taking into account collections, especially in the western United States, made since the publication of Torrey & A. Gray (1838-43).
must be a grand piece of work, thorough and masterly, like all you do. It is most kind of you, to invite me to the British Association in Canada,
5
The British Association for the Advancement of Science met in Canada in 1884.
and your own in Philadelphia;
6
The American Association for the Advancement of Science met in Philadelphia in September 1884.
and one of the greatest joys of such a tour would be to shake hands with you ! But alas I have now 7 months suffered from deep seated bronchial inflammation, have become much debilitated and only just now gain a little appetite once more, though the cough is not subdued. My parents died early of phthisis, and all through life I have suffered from lung-affections. My work, during this protracted illness got into some arrear, and if I at all get well again, I must make up for lost time.
I may however some time later slip over for a short itineration in N. America, and hope then to pay you personally my homage.
Bentham wrote me a touching farewell-letter a few months ago,
7
See G. Bentham to M, November 1883 (in this edition as 83-11-00).
stating that he never could hope to resume work. Alas! That he should be such a sufferer at the late evening of his life, when we hoped that he at all events would in happy contemplation of his own gigantic achievements watch also calmly and joyfully the progress of bot discoveries. He must feel very lonely also now towards the end of his illustrious career, having no one of family ties to cheer him up.
Let me hope, dear Dr Gray, that your health, and also your serenity and vigor of mind will remain long unimpaired.
Very regardfully your
Ferd. von Mueller.
I will send the two missing parts of the Eucalyptography.
8
Gray had reviewed Decades 1 and 2 of B79.13.11 in the American journal of science and arts, series 3, vol. 18, pp. 485-6. The missing parts were either the remaining two of B79.13.11, or among those published before this letter was written, namely B80.13.14 and B82.13.07.
Latterly a new arrangement has come here into force, by which Gov. publications are distributed through the Premier's Office; I find this causes much delay.