Solar Spectrum caused by the Sun’s rotation. 327 
West. Mean. Kast. 
rT d d r d d 6 
D, | 0 33°30 88°27 | 0 34°25 | 0°95 |i—==0°0146 
mat 1 13°47 £18004. 41 Te U=2°78 
¥.1:1 86°25 1238740 Cue : 
This ob tion deserves 
D, | 1 52°92| 113-45 | 1 53°97 se double weight, on sccount of 
d the ppt readings and 
A=80°18 b= 1°17 lllines observ 
(6.) August 10; 11.10 to 11.50 a.m. D lines; spate right ; 
spectrum 6th order ; definition poor. 
West. Mean. East. 
r ad d r d d é 
mt 2 18°70 137°63 2 16°55 2°15 {=00188 
Ni | 1 25°65 1 22°85 2°80 =3°59 
Dy 4: 0 82°05 31°52 0 31°00 1°05 
A=106'11 6=2°00 | 
Rejecting the nickel line, 6’=1°60, °=0-0151 Ul'=257. 
(7.) August 12; 9.80 to 10.10 a. “1474 group ; grating 
left; 8th order ; definition fine -* instrument tnverted. 
West. Mean. East. 
¥ d d r d 
K1463,| 2 51-72 17222 | 2 52°72 1:00 1/6 _ 9.90783 
1467 | 3 5100 3 52°28 1°28 ||4 
4 49°65 4 51°60 1:95 ||;U 2°66 
1474 5 49-20 349°71 5 50°23 1°03 
A=177-49 §=131 || 
Bo ATT ee 
(8.) August 12; 10.85 to 11.10 a.m. 1474 group, grating 
kft; spectrum 8th order; instrument erect ; definition fi 
West. Mean. East. 
K r d r a 
1474} 2 29-90 149°32 2 28°75 19S 10 ans 
1467 | 4 28-00 4 26°82 118 || 
1463,| 5 27-63 | 32661 | 5 2642 | 1°21 P 9°41 
Se ch piaSla 
A=177°29 6==1° 18 
(9.) August 12; 11.30 a. M. to 12.20 P. M. 1474 group; 
grating left ; spectrum 8th order ; slit radial ; definition ‘tine, 
eae ot HPeoee eacns onemanee 
pie | ee 
1463,) 0 52-92 53°46 | 0 54°00 | 1:08 |= 0°00651 
1467 | 1 52-85 - 41-5415 | 1°30 = 2°35 
i474 | 8 51:18 | 981-72 | 9 62°97 4 100 
A=178°26 d=1'16 
eee 
* The definition Pig such that 1474 constantly showed double, and on 
rll slit to the base of the chromosphere, the bright line which speared wes due 
early seen to coitide with the more refrangible of the two components. 
