46R Hope street 
■ -i-ovidene e, H, I. 
Dec. 13, 1907. 
Dear Bartlett; 
The Sphagna cane today. I am greatly obliged 
for t v em. An sorry that you were not able to attend the last 
Club meeting. You missed Leavitt*s talk . 
Thank you also for the solution of the solution Question. 
I had about concluded that the ”m" probably had something to do 
with "'molecule”, but felt decidedly uncertain in regard to it. 
I assure that a 3ir./32 solution of KaCl would be (approximately) 
0.5 gm.UaCl per liter. Am I correct 0 
•re you planning to be on Cambridge during the Christmas 
vacation? If so perhaps I may see you if I can find time to 
take a day’s vacation between now and January. I have a few 
plants which I want to compare with authentic specimens at 
the Gray herbarium the first chance I can get. 
Cordially, 
