
          fifty feet high and twenty inches diameter at the base.
 I have taken much pains in examining the oaks of this district
 and have found 12 species including the Heterophylla
 namely
 Q. alba
 Q. heterophylla
 Q. tinctoria
 Q. falcata  most abundant
 Q. obtusiloba
 Q. cineria
 Q. coccinea  very common
 Q. palustris  common
 Q. phellos  only in wet places
 Q. imbricaria  capitol grounds, introduced I think from a [?]
 Q. prinus monticola
 Q. prinus discolor  rare, only seen two trees


 Is the heterophylla or Bartram Oak a hybrid? If so of what species is it
 derived? I have made up my mind if so shall, it comes from
 the falcata & phellos. I have not the evidence & do not see how it
 can be obtained except a hybrid might be got from the two trees
 favorably situated by scattering the pollen of one upon the pistils
 of the other. This I have attempted for the three last years but thus
 far without any success. I got good acorns from the Bartram
 last autumn and planted many & have young trees in
 my yard of this years growth. I have been led to give special
 attribution to the oaks preparatory to a series of experiments I am
 conducting on the tannin yielding plants & trees. The persimmon
 has many interesting features in this relation. The changes in
 ripening of the fruit are very remarkable and [inserted: present] [crossed out: is] a beautiful illustration
 of the conversion of tannic acid into glucose. The

        