ee eee ee ae 
$ are = 
a ee . hd 
dak points, where the observations are multiplied, oe «my 
bed ended por to the nearest five seconds. 
Of local time. : 
“The local time was, in all cases, ae by altitudes .. the 
Fremreginn podies*on different sides of th re ge 
_ The astror aan observations, umber, were computed, i 
in the 
t place, by ga and Mr. Boron, and subsequently by. hs 
Sievtosies 5 Cc. Hubbar . The results, as given in the appendix, 
the final com sateen of Professor Hubbard, whose well-earned 
’ utation as a computer entitle: his work to entiré confidence, ake 
These observations establish the geographical position of 52 points, é 
extending from Fort Leayenworth to. the Pacific, most of which lig, 
in ree pe besondadid ebérmaned. 
bs’. Heights above the s. sea. 
At Fort Lede worth, through the Hberalitg of the medical de: 
rtment, I w nished with a syphon barometer, b ie B 
o. 515, ‘th comparison” of w ich, with the standard at 1 
given in th hess bj oined note. eri * 
= servatoire.—Co omparaison du barométre a Syphon, No. 55 ‘de= 
Bunten, avec le barometre de Pobservatoire. 
ag ; eine) Sek aoe Ge 1843 _ 
Le barometie’ Nad 515, cdbune ‘des “hauteurs plus mec 
celles qui sont indiquées par le barométre de Pobservatoite, la die 
ferengy est de 0.45 centiémes de millimétre. 
se On 515... wee eee eee we eeee erway” te 
aa. aay a eves ees 
ists 
ey ; a | Difforence.-seesers- Spee a? ARS oa SARE 
=e is eee ‘eRe ope ty 
el 
ae 
re fee L’observatoire. 
: res se =o 
758.20 +0.40 
761.50 . -+0.50 
762.14 — +0.56_ 
- q 
738.06 | 40.44 | 
