95 
1919-20.] The Daily Temperature Curve. 
as functions of b (cf. next section), and the residuals are then calculated 
also in terms of b. These residuals turn out smallest for n = 0‘16 and 
values of b not exceeding 010. This value, n = 016, is adopted in the final 
calculations. Hence the coefficient of transmission (§ 3) has the value 0*69 
at Glasgow (log 069 = — 0T6). 
(7) The Values of the Coefficients . — The right-hand sides of the equations 
(III) and (IV*) can now be computed from (5), (6), (7). The means of their 
monthly values are contained in the last two columns of the equations 
below. 
z 
Equations (III). 
Residuals. 
o 
90 
— 0"15 — 0’15 a + 2'64 6 = -O'OO# 
-0*39-0*68 6 
85 
-0*43- 1*03 a + 3*08 6g(- 2*270 
-0-06 + 0-36 6 
80 
- 0-65 - 1-28 a + 3-47 6 = -3*87 0 
+ 0"13 + 0’93 6 
75 
-0-62-1-41 a + 3'66 6 = -3*50 g 
0-00 + 0-24 6 
70 
— 0"49 — l-44a + 3 , 68 6== — 2*85 g 
- 0-08 - 0-39 6 
65 
— 0-30 — 1-37 a + 3-59 6 = — 2-31# 
-0-03-0-616 
60 
-0*17-l*25a + 3*466 = — 1*900 
+ 0-01-0-54 6 
55 
-0-11 - 1*12 a + 3-33 6= - 1*59 g 
+ 0-02-0-34 6 
50 
-0-08-l*02a + 3*206= -1*360 
+ 0-02-0-22 6 
45 
-0*08-0*93a + 3*116= -1*200 
0-00-0-04 6 
40 
- 0-06 - 0-82 a + 3-01 6 = - 1 05 g 
000 + 0-23 6 
35 
— 0*08 — 0*77 a + 2-99 6 = -0*95 g 
-0-03 + 0-35 6 
2 
Equations (IV*). 
Residuals. 
o 
90 
+ 0-08 - 0-23 a - 0-60 6 = - 0*008 e - 0-052/ 
-0-03-0-516 
85 
+ 0-03 - 0-04 a - 0-04 6 = - 0-006 e - 0*028/ 
0-00 + 0-37 6 
80 
-0-11+ 0-28 a + 0-65 6 = + 0-015 e + 0*079/ 
+ 0-04 + 0-24 6 
75 
- 0-31 + 0-63 a + 1 -45 6 = + 0*056 e + 0-197/ 
+ 0-02 + 0-116 
70 
- 0-44 + 0-85 a + 2-22 6= +0-110e + 0-293/ 
0-00-0*07 6 
65 
- 0-57 + 1 -09 a + 3 -02 6 =+ 0- 1 70 6 + 0-370/ 
-0-04 + 0*23 6 
60 
-0*58 + l*16a + 3*616=+0*232e + 0*429/ 
-0-02-0-02 6 
55 
- 0-61 + 1 -23 a + 4-22 6 = + 0-294 e + 0’475/ 
-0-03 + 0-05 6 
50 
-0*58 + 1*28 a + 4*68 6== +0-3546 + 0-512/ 
-0-01+0-03 6 
45 
-0-57 + 1-31 a + 5-08 6= +0-411 6 + 0-542/ 
-0-01 + 0-016 
40 
- 0*54 + 1 -33 a + 5‘43 6 = + 0*463 6 + 0‘565/ 
+ 0-01 + 0-05 6 
35 
- 0-51 + 1 -36 a + 5*61 6 =+ 0-512 e + 0*585/ 
+ 0-03 + 0-03 6 
30 
- 0*48 + l*34a + 5*84 6 = +0*557 <5 + 0*601/ 
+ 0-02-0-07 6 
I take the sums of the equations for zenith distances 85° to 60° and the 
sums of the equations foi smaller zenith distances. The two equations 
resulting from (III) give a— + 0-317 4-4*43 6 ; g= +0*306 + 0-809 b. The 
two equations derived from (IV*) give, with the above value of a, 
e = + 0-803 - 1-94 6 ; /= - 0-880 + 21*52 b. 
The value of b is not well found from the equations. Indeed, any value 
