608 The Philippine Journal of Science 1920 
TABLE 1. 
Duration. Contacts. 
“No. | Date. g r Remarks. 
Ob- Com- | Diffe-| € | & | 1 | 2 
served. | puted. ence, I 5 
1918 | Seconds. | Seconds. | Seconds. 
1} Dec. 22 159.8 147. 45 Pr Iee bes eoue Boe ee 
1919 
2 | Jan. 145.5 146.6 ars 5 og REN Saeco Se 
8 | Jan. 10 156.5 146.1 +10.4 0 2 hd Sans ep ewes Colton phenomena. 
4| Jan. il 164.0 145.7 +18.3 B 
5 | Jan. 18 148.0 144.3 fe ot eae Cee Ot eae ee SO ee Harbor breakwater as 
horizon. 
6 | Jan. 22 147.0 143.6 + B.4 Oo orl 2h chee 
7) Jan. 23 146.0 143.4 ee DF oss aber ioensce 
8 | Jan, 24 169.0 143.2 +25.8 0 B 
9 | Jan. 25 163.0 143.0 +20.0 0: ks. a7 
10 | Jan. 27 153.0 142.4 +10.6 0 go igs Oehaoaa pes Colton phenomena. 
11 | Jan. 29 150.5 141.9 + 8.6 0 (: ie eee Bae Do. 
12 | Jan. 31 152.0 141.4 +10.6 0 AS Benet ewes Colton phenomena weak. 
13 | Apr. 16 133.0 134.7 =~ LF ? A ie oe Mount Mirador. Colton 
phenomena. 
14 | Apr. 18 136.5 134.8 oe jee i gas ema EMS Mount Mirador. Colton 
phenomena strong. 
15 | Apr. 19 136.0 135.0 + 107 2. | ? Lt Do. 
16 | Apr. 20 158.0 134.9 20. Fe joccey. ? 1? Mount Mirador. Colton 
phenomena. 
17 | Apr. 21 136.0] 186.2 — 0.2 |... ae NRE b | San Fernando. 
18 | Dee. 9 145.8 148.6 —2.8 0 - 
19 | Dec. 12 147.1 148.9 = 18 0 A 
1920 : 
20| Jan. 8 159.0 148.5 +10.5 0 Slight rain. 
21 | Jan. 12 150.2 145.8 + 4.4 Bee archaea a a 
22 | Jan. 18 148.5 | 144.4 Paid. O | B a al 
23 | Jan. 20 143.6) 144.0 | —0,4!] 0 ju... a | a | Colton phenomena weak. 
24 | Jan, 21 141.7 143.9 — 2.2 2 A b Colton phenomena 
marked. 
26 | Jan. 22 142.8 143.6 —1.3 0 A a a 
26 | Jan. 23 143.0 143.4 — 0.4 1 A 
27 | Jan. 24 142.9 143.2 — 0.8 0 A a 
28 | Jan. 25 144.1 143.0 +11 0 A 
29 | Jan. 26 143.9 142.9 +10 0 A le a 
30 | Jan. 27 147.1 142.5 + 46 0 BA aes Colton phenomena 
4 marked. 
81 | Jan. 28 165.2 142.2 +23.0/ 0 B a a 
32 | Jan. 29 163.0} 142.1 +20.9} 0 B Colton phenomena weak. 
33 | Jan. 30 145.1 141.8 + 3.8 0 B Do. 
84 | Jan. 31 156.6 | 141.5 +15.1{ 0°18 a a | Colton phenomena 
moderate. 
385 | Feb. 1 149.5 141.3 + 8.2 0 B 
36 | Feb. 2 145.4 141.1 + 4.3 0 B b 
37 | Apr. 2 134.4] 184.4 C001 «A a a |San Fernando Point 
Lighthouse. 
$8 | Apr, Di 6.174 a a |San Fernando. Colton 
phenomena weak. 
