2d 
that I ain oot able to perform work rapidly. The brief sketch 
may serve as a hint to some future historian of the State, 
and I believe that the Whitney Geological Survey , should oe- 
-cupy something of space in its history. 
The California State Medical Soci ety ,publ ishes its Trans- 
-ablons in an annual volume, the number of copies published, 
not being much in excess of the membership; but I may have 
my brief paper re-printed, to gather with another brief arti- 
-cle which I have not yet re-published, in pamphlet form; and 
in which case I shall take pleasure in sending you a copy; 
but when a man has arrived at about the allotted seventy 
years and has become encumbered witn many disabling infirmi- 
-tieSjhe is unable to make definite calculation, as to what he 
can perform in the future. 
Yours Very Truly; 
