Pressure and Temperature Results for the Great Plateau. 
307 
TABLE 29. 
EVALUATING THE COSINE CURVE FOR KIMBERLEY IN 
Sy Iba, Wislo 4" 
’ Sun’s * = nape ae : 
F Sun’s Heat Diffe- 
M Sun’ Zenith : ape Temp. 
mates Declination: Distance. ee CosiZ: | ea | y : BENS 
o , ” t Wr O oO 
Jan. 16 20) 53 98'S 7 49 9776 "991 *955702 92°3 + 0:3 
Feb. 15 | 12 34 348 Lor 7% 973'3 ‘961 ‘947307 89°6 +07 
Mar. 16 1 37 468 27 «#34 966°3 °890 -931736 83°7 — 03 
April 16 9 51 50 N 38 34 9581 782 *917956 755 +01 
May 16/19 9 54 N 47 52 951°1 ‘671 *903591 67:3 +01 
June 16 | 23 19 59 N 52. 2 9467 615 *896241 63°3 0:0 
July 16 | 21 20 34 N 49 3 946°4 655 °895673 658 +15 
Aug. 16 | 13 40 30 N 420 22 950°2 "739 ‘902880 71°8 +13 
Septl6))) 256) 4 Ni) il 38 957-0; | 851 |) -915849 |, 8070) 4 1-7 
Oct. 16 8 59 278 19 43 965°4 ‘941 931997 | 87-2 + 2:1 
Nov. 16 | 19 34 168 10 =68 973°0 ‘984 *946729 | 91°3 +14 
Dec. 16 | 23 20 57S 5 21 9775 ‘996 °955506 | 92°7 0:0 
TABLE 30. 
SoME OTHER VALUES IN THE COSINE FORMULA. 
Bloemfontein. Alawal North. 
Mean Date. Z y M By Wi | Z, via yes v 
o : fe) oO fo) to) ae | oe | © fo) 
En O\o ad we eesagee 8 12 | 86°3 | 86-3 | 0:0 9 48 | 83°5 | 83°3 + 0:2 
Hebs ha) oes: ccn. | 1G S2n e842 285-3 ) —11 18 6) 81°4 | 82:9 —1°5 
WIE ES IG Sanreene 2% ~=6©-29. |) 79-6 | 80°7 | —1r1 | 29° 3 | 76°8 | 78:3 —1:5 
Jy ven 10) eeogeared | 38 59 | 73°3 | 75:0 —1:7 | 40 33 | 70°6 | 72-1 —1°5 
Miaiy: VO ve.citec es | 48 17 | 67:0 | 67:5 —0°5 49 53 | 64:4 | 65:6 —1-2 
iors; IG) Gooansaas | BP Oy tent |G zteil 0:0 54 1/1] 61°5 | 61:5 0:0 
Tiny UG coonasoce AQ 528) 765-9064-9) | eal oil 2163-4 Gi? | = 1-7 
INTs TGR gh eee AAT ANOS 691 | 2 1-4y | 44 on G7-e) 66-1) te 1-7 
Sept. lOc. ...... ay) a) ft (Ase8) | ise +13 || 33 37 | 74:0 | 72-4 + 1°6 
Oct VLG: svc... 20 8 | 82°3 | 80°6 | +17 21 42 | 79-5 | 77-2 + 2°3 
INOWeeliON sec esee.s 10 33 | 85:4 | 83:5 +19 | 12 7| 82-7 | 80:4 + 2:3 
Dee: 16. vise. 5 46 | 86°6 | 86°6 0-0 7 20, 83:8 | 83-8 0:0 
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