
          Baltimore Oct. 13th 1839.


 My Dear Sir


 I am requested by my sister to
 ask you whether in your connection with the Geolog. Surv.
 of the State you find it desirable to have plants
 correctly figured. She has already many which she
 has drawn from nature and would by very willing
 to aid you in this way in future if you need such
 assistance. Her knowledge of botany is amply sufficient
 to insure perfect botanical accuracy in all her
 drawings and as to execution I am confident a
 sight of those she has now on hand would abundantly
 satisfy you. If it so happens that her aid
 is desirable a [?] to myself or to her would enable
 us to arrange all preliminaries very speedily. I should
 have mentioned that she will dispose of those already
 figured as well as figure others.  In her letter to me
 on this subject she inquires what work will best explain 
 to her the natural classification and what one
 if there is any one will best give her an insight
        