in tite 49 
Mn. Tsoxrson’s Monowest No. 1. vee 
Equal Altitudes of the Sun for ascertaining the Time. 
i ayo ere ee arog Time after By Arnold 2111. 
* 101? 20’ |Auga. 2h 5075| Auge. Th 59” 56” 
30 59 14 
4 2 7 58 32 
18 0 57 45 5 
Double Altitude’ 
Sun’s L. L. 
101° OF 13 59 56 49 
10 14 42 56 5 
20° 15 26 5 55 22 
30 16 10 54 39 
Result : tore te ie noon by by mean beg all 
observation -. Oh 5’ 24” 00 
Conectie - - - - Pe Pe AO, Fa 
Apparen “ns noo 0 5 33 56 
Mean time at "the apparent n6Oi, - _0 5 43 12 
Arnold slow of the mean time of Mr. Ln te 
Monument No. 1, Aug. 4th, Oh 5’ 7” M 0 9 56 
- Mr. Txomeson’s Monument No. 1. 
Circummeridian Observations for de-§ Index error + 2"5 
termining the Latitude. _ ¢Thermom. = 75°} 
Time be Arnold {Double —T of, Time a — Double Altitude of 
Sun’s U. L Sun’s L. L. 
Aug. : @ = 116° 12! {orl ug. 4. “O81 907% 114° 597 50/7 
12. 35 54 50 
14 40 6 10 21 2 48 50 
15 14 5 0 
15 32 4 20 
15 58 5 3 50 
Result: Toenith dist i Lah Cinta va : ; 39° g’ 38” 93 
Refraction see geo <— 30 30 
Sun’s declina = “ -. 17.12 63 2 
Latitude of Mr. aa Monument No.1. 49 23 2 37 
Latitude of the two Stations. 
From the mean of all observations made at the same station, 
the following results have been deduced: 
Latitude of Mr. Thompson’s Monument No.1, 49°23’ 6” 4g 
Latitude of the Station near the Rat — 49 45 56 54 
Vot. XV. pn NO. 1 
Mo. Bot. Garden, 
1901. 
