470 J. M. Schaeberle 
Lateral Astronomical Refraction. , 
In order to show the facility with which these corrections 
are applied, as well as to give a general idea of the magnitude 
of the corrections, the following tables are given: 
I. IT, 
Dv’ Ah’ Ah D ¥ | sin. 
miles. ay 1 7 AP miles: a et O00 t) Gace 
10 | 0"59 | O10 | 10 Me jones kg 
20 30 | 0-05 20 et hace 
30) 2 “0! 30 ne ars a 
40 18 03 40 3 ie 
50 42 | 02 | 50 AT 
60 87 | 30 
60 10 “02 60 10. |. 94} 20 
70 08 ‘01 70 so | 98 |. 10 
80 07 01 | 80 90 | 100) 0 
90 07 01 90 ie 
100 0-06 O01 100 eos 4... ¥ 
ILL— Corrections to the reduced zenith distances. 
¥=0 a D’ sec? z, 
a —— 
D’ u 
0° 10° 20° 30° 40° 50° 60° 70° 80 
10 | 059 |0"-61 |0"67 |0"-79 | 1"-00 |1%42 | 2"35 | 47-99 | 18°87 
20 os . 3 39 50 hike 2:50 | 943 
30 20 22 26 33 47 “78 | 1°66 6:29 
40 WO) 46) tt 590 | as | 86.) 89, [198 | a 
50 1) Rs AR te 00 98) et oo fot 
60 10 10 ‘ji 13 ‘1% 24 39 83 14 
a6 08 | ‘09 | *10 t¥ 7 9a 90 34 2°69 
80 07 “08 08 10 13 18 29 62 2°38 
90 07 07 “07 09 1 ‘] 26 56 2°10 : 
100 06 06 07 08 10 14 3 50 89 
| ‘ 
eo 0 a&— sec? z. 
; s 
D 
2 20 05 6 ‘08 “12 1°60 
30 03 03 04 "06 08 13 98, 107 
02 03 03 04 06 10 1 
01 01 02 02 021 -03 06 12 46 
Oi ft 01 O1:|" 02 02 03 ‘ll 40 
Ot tO) “OL D1 02 03 37 
01 | “01 OT? Vi a 02 | “04 08 32 
