H. A. Hazen—The Sun Glows. 207 
Table of mean sun spot numbers 1880-83. 
Month, No, Residuals. 38d Order of Means. Residuals. 
41880, January, 11°5 —12°9 
February, 6°4 —18-0 58 —187 
March, 2°1 —22'3 64 —181 
April, 91 —15'3 8 —147 
May, 11-7 —12°7 125 —12°0 
June, 148 <e 14:3 —10°2 
aly, 118 —13°6 191 oe 
: August, 23°0 — 14 25°3 0°8 
September, 33:4 9°0 25°4 09 
October, 21-4 — 30 19°4 ee 
November, 15°6 ne OS 148 rene 
cember, 10°8 —13°6 15°4 — 
1881, January, 18°5 . << 5 19°38 —<e 
February, 19°9 — 45 26°3 gt i 
March, 31°9 15 30°6 61 
April, 36°5 12'1 29°6 251 
ay, 20°4 an. 4° 29-4 4°9 
June, 34:5 10°1 32'8 - 
July, 34-4 10-0 33-9 nie 
August, 36°0 116 30°1 va 
September, 25-7 13 24°6 ae 
October, 21°65 —-e 21°3 — 32 
November, 198 — 46 20°1 — 44 
mber, 21-0 — 3-4 20°6 ae 
1882, January 16°6 — 78 24°] = os 
ebruary, $3] 17 30°8 oe : 
ch, 25°6 1:2 40°1 15°6 
April, 51 32°7 43°4 189 
May, 40°5 16°] 367 133 , 
June, 29°3 4-9 28°2 rk 
July, 27:0 ee ie 23°2 as 
ugust, 160 — 84 23-0 mie 
September, 271 2° 25:9 1s 
October, 27°4 3-0 25° 13 | 
November, 28-0 3°6 20° = 4% c 
cember, 12:4 —12°0 15:2 mee ; 
1883, January, 12°2 —12°2 15°4 ~ oe 
ebruary, 19° ‘ 19°0 pinto 
March, 15-0 — 94 22-4 ages 
pril, 35°8 114 22-4 ei 
May, /* 17°0 26°3 
June, 34°6 103 os odd : 
July, 48°7 24°3 355 11 
: 240 el glen 320 
September, 31-1 67 34° ro 
er, 41 17-0 STE 176 
November, 55 lil 
ber, 835 10°9 . 
This table shows an pe of sale 2 pa ig 
when probably the max of the p = 
‘ccurred and after that a ccarkie fall Sliced since say) : 
by almost a steady rise. This fluctuation is still more pisoly 
indica y the residuals in the third order 0 — vee be Sint 
: sal appaked an increase of solar spots Indl com : 
Tease of magnetical and electrical ote se aun ae 
