
          Cambridge 16th. Oct. 1849.

My Dear Doctor

The month is so far advanced
that, not hearing from you, I fear you
have postponed your visit till Christmas. Harvey
is to come to-morrow. Perhaps youwill come
together. There is plenty of room for you and a welcome
be assured.

On Hastings return to New York I did not
get the package containing the [Boraginace?], Lambert.
vol. Sulph. etc., therefore the more I concluded
you were coming.

But if you come, bring, if not please
oblige me by sending fron New York * your
portfolio of Vesicaria. From [crossed out: Engelmann] Lindheimer,
whose new Texan plants I am at length working up, Wright.
etc. , I have half a dozen new ones, at least new to
me. But there are some in the Flora I do not
understand. I want to avoid further embroiling a difficult
genus.

If you will send yours I will give new
diagnoses to the whole, if it is possible, a bothering job.

*You are still in time for a  package to Paris or Generva,
but be quick. 
        