EDITORS : 
JOHN M. COULTER, 
WABASH COLLEGE, CRAWFORDSVILLE, INO, 
CHARLES R. BARNES, 
UNIVERSITY OF WISCONSIN, MADISON, WI8. 
J. C. ARTHUR, 
PURDUE UNIVERSITY, LAFAYETTE, IND, 
August 18.1891. 
My dear Dr. Watson; — 
I was sorry to have to leave Cambridge without seeing 
you again, but as I had made all my arrangements ofi the supposition 
that you were to return on Monday I had no alternative. As both Miss 
Clark and Mr.Pernald were on hands I thought that the business of the 
herbarium would be better attended to probably than when in my charge. 
Going without seeing you, I was obliged to use my own discretion as to 
what books could be taken. I think that I have nothing that you are 
likely to need . The list of those that I took is in Miss Clark’s 
hand s . 
My boxes of papers, books , etc. which I sent by freight came last 
week and were unpacked; yesterday I resumed work, beginning upon the 
Leguminosae. 
My wife is already considerably improved by reason of the change. 
She sleeps and eats much better than in her desolation at the Sani- 
tarium. She stood the journey well much better tiian I anticipated 
and I hope that she v/ill steadily gain in strength. 
Your "Contributions XVIII" came yesterday; for which, tbianks. 
Very cordially yours, 
