
          Cambridge, Monday evening, 25th May.


 My Dear Doctor,


 Your parcel and note of the 15th 
 inst [instant] came the other day, just 15 minutes after Mr. 
 Sprague had left me. I had kept him on hand 
 some days to be ready. He returned again last 
 week, but I was obliged to set him at Thermopsis 
 mollis  & Saxifraga Careyana, just out. Yours, 
 now that the Poppy is drawn, you will be in no special
 haste for, but they shall be taken up when Sprague gets 
 settled near me. He left on Friday again, to return 
 to-morrow morning, and take up Lenisia [Lewisia], which is 
 just on the point of expanding, a fine pink-red flower, 
 I judge. 


 Dr. Clark has been here to-day, looking 
 at the microscope and examining morbid specimens. 
 He came opportunely for a cold and head-ache would 
 have prevented my doing much. 


 I feel quite anxious to hear from Mrs. Torrey,
 have not heard for a long time, I hope the chills &
 fever were promptly arrested. 


 When you send next, will you send me your drawing of 
 Obolaria? Sprague has made beautiful dissections of 
 it.
        