
          I have sent another mineral which I look upon as
 a vary. [variety] of horn blend [hornblende] but I find the Augite or Sahlite
 just as easily found as it, altho a difference in this respect
 is given as a character. I first supposed it Augite
 and could perceive nothing to distinguish [crossed out: them] it
 but its less hardness. I have a crystal of Augite from Europe
 with which I compared it as well as with your Sahlite.
 I send a most minute piece of what I supposed
 might be Chlorite. I doubt whether you can determine
 from it. It is from Scotland. Also a small piece
 of what I think Splintery Hornstone. The others
 I shall mark.


 I hope you will excuse the trouble I give you
 and impute it to my desire to perfect myself in a difficult
 study & one in which you are so well qualified to 
 give assistance. My brother will be only 2 or 3 days
 in N.Y. and if you can do it, I wish you would send
 an answer by him, directing to Benj. [Benjamin] Holmes, Esq.


 [crossed out: on to] To the care of R Wadsworth, Franklin
 Street. This will save postage but besides it will [added: give] you
 an oppportunity of forwarding me two or three specimens
 such as Chlorite, Graywacke &.


 Believe me yours truly
 A.F. Holmes


 I have heard lately from Greville. He has proposed me
 as M.W.S. & tells me I shall be elected next meeting.
        