p.1

Official

Room No. 64 Pikes Opera House
Cincinnati Nov. 17th 1870

Sir,

In answer to your communication of
the 15th inst. I have to say, that I can
not find anything wrong after carefully
reviewing the Observations and calculations
of the Barometer. The following are three
Observations made on Nov. 13th 14th and
15th at 7.05 a.m.

Nov. 13th 7.05 a.m.

Temperature Attached Thermometer.
62 [degrees]

Barometer
29.50 Observed height
.088 deducted for temperature
-------------------------------
29.412
.063 added for sea level-
-------------------------------
29.475
.013 deducted for instrumental error
-------------------------------
29.462
------------------------------- Mean temp., at Cincinnati for Nov.
is 42.5

Table VII
90.9 91.4*
91.9
2/1828
----------
91.4

582 feet
5514
-----------
3960
2742
-----------
.063 to be added
for sea level

*Should have been 914.
[illegible] 0.63