
          from Nova Scotia and the one you sent me are
 are all I possess from your side of the Atlantic


 I have lately been looking for the infusory
 animalcules which the Germans tell us constitute
 the matter of flint, but perhaps from not possessing
 the Second sight I have not been able to see any
 of them.


 I should have mentioned that to see distinctly the discs
 and transverse lines in the sections of Torreya taxifolia
 a magnifying power of at least 200 times is necessary.
 These objects were seen to advantage with a single
 double convex lense of the 20th of an inch radius. A
 much lower power will do for the transverse
 section.


 When any of your Scientific friends are coming
 to this Country if I can be of any use to them, you
 will confer a favour by / sending them to me


 I expect Professor Henry to call [over?] moment
 for this hasty [servant?] and therefore must conclude
 with assuring you [added: that you] may at all times command
 the best services of


 Dear Sir
 Yours most truely
 William Nicol
        