TO JOHN H. REDFIELD.

Cambridge, April 21, 1880.

Dear Redfield,—If you hear of my breaking down utterly, and being sent to an asylum, you may lay it to Aster, which is a slow and fatal poison.

Apparently it will take a year or more for me to finish it, with the greater chance that it finishes me before that time....

April 24.

Thanks for both specimen and sympathy. The former is here safely returned.

The A. glacialis I must seek in Nuttall’s herbarium, now at the British Museum.

The principal troubles in Aster are packed away, to try on again, in London, Paris, and Berlin.

TO R. W. CHURCH.

Cambridge, May 17, 1880.