- 
| Hayden and Gardner's Survey of the Territories. 297 
: 
F Epoch=1873 Aug. 23°5 Washington M. T. 
w= 20° 5’  50°'9 
ages re oe Apparent Equinox August 23. 
a= 0°467016 p= 707'108 
These elements represent well the places of the planet to Sep- 
tember 2d, and for July 29th they give the following place: 
az=23 12™ 4152 d= — 2° 238’ 42” 
It is evident, therefore, that the planet of August 16th is 
different from that of July 29th. I have commenced the search 
_ for the latter, and will prosecute it as completely as the weather 
will permit. The planet of August 16th is at present about a 
magnitude brighter than that of July 29th. 
Tadd also some observations of the planet discovered by me 
on June 13th. 
Ann Arbor M. T. a éb 
1873 June 13 12"438™445 1716 59°50 —21°52! 174 
13 1 
1630 17. 9 17 15 56°10 21 42 40°7 
15 11 47 20 17 14 41°68 21 31 29°6 
18 : 
July 213 5 0 1657 504 18 44 50. 
5 13 22 17 16 55 3843 —18 19 12°7 
This planet was of the eleventh magnitude. The following 
elements have been computed by Mr. Ritter, one of my 
assistants : 
| 
Epoch=1873 June 18°5 Washington M. T. 
M= 79° 38' 5.9 
=152 38 14°6 
: Q==259 33 6.2 | Ecliptic and Mean Eq. 1873°0 
i= 21 7 39° 
p= 15 28 27:8 
log a=0°372518 pe = 980°008. 
Ann Arbor, Sept. 3, 1873. 
Art. XXXIIL—Hayden and Gardner's Survey of the Te erritorie, 
under the Direction of the Department of the Interior. 
U.S. i ; hical Survey of the Ter- 
S. Geological and Geographica ante y cnestil 
F ield work was begun about the middle of May. ‘The region 
Selected for this season's operations lies between pa 8 
* Communicated b f the Expedition, under date 
4 y Jas. T. Gardner, Geographer of the Expe ’ 
of Middle Park, Sept. 3. pie, 
