AUTHOR’S NOTES ON WEATHER CONDITIONS DURING OBSERVATIONS 
i860 June 
14. 
Hazy; the spots very dim. 
Oct. 
3°- 
Very thickly hazy. 
i7- 
Clear sky with clouds. 
3i- 
Great many clouds; almost overcast. 
18. 
Clear sky. 
Nov. 
4- 
Many clouds. 
19. 
Many clouds but clear between them; limb and spot 
5- 
Great many clouds. 
much undulating. 
7- 
Many clouds. 
20. 
Hazy and many clouds. Observation in clear sky 
8. 
Fine and clear; then clouds arising and the limbs un- 
between the clouds. 
dulating. 
27. 
Clear sky; the observations with interruptions by clouds. 
16. 
Many clouds. 
28. 
Many clouds, though sky clear. 
22. 
Clear and calm. 
July 
4- 
Sky clear with clouds. 
24. 
Suddenly cleared up after a snow storm. 
6. 
Sky clear, without clouds, and calm. 
25- 
Hazy with clouds. 
7- 
Clear; interrupted by many clouds. Limbs much un- 
28. 
Clear and calm. 
dulating. 
Dec. 
14. 
Clear and calm; the spots swimming, however. 
8. 
Interrupted by many clouds. 
i5- 
Clear sky, but limbs and spots very much waving and 
9- 
Many clouds. 
swimming. No sharp view of the spots could be ob- 
11. 
Very clear; strong wind. 
tained but for short moments. 
i5- 
Sky clear with clouds. 
23- 
Images steady though rather dim, the sky being hazy. 
18. 
Hazy toward noon. 
1861 Jan. 
2. 
Clear, and images rather steady. 
20. 
Clear. 
4- 
Hazy and very dim; spots indistinct. 
22. 
Clear sky. 
5- 
Spots sharp and distinct. 
24. 
Clear; strong wind; limb tremulous. 
12. 
Hazy, and clouds after third set. 
28. 
Clear; but limbs as well as spots tremulous. 
22. 
Clear and bright. 
30- 
Clear with clouds. 
23- 
Smoky; images dull; smaller spots invisible. 
3i- 
Clouds intervened so that only two sets in R. A. could 
25- 
Hazy; steady and pretty distinct images. 
be obtained. 
27. 
Spots swimming in the beginning; then more steady. 
Aug. 
1. 
Clear sky, almost cloudless; the limbs somewhat un- 
Feb. 
1. 
Clear with cirrhi. Steady; all the spots small; the 
dulating. 
whole disk mottled. ; 
3- 
Hazy. 
6. 
Clear; spots distinct; wind. 
5- 
Very clear and calm. 
12. 
Clear and fine; steady, sharply defined images. 
6. 
Very clear and calm; cloudless. 
14. 
Very hazy; only the large spots visible, and then, too, 
I 5- 
Limbs much undulating. 
very dim. 
16. 
A little hazy. 
16. 
Clear and very distinct. 
i7- 
Clear with clouds; limbs undulating. 
22. 
While making sketch perfectly clear; then hazy so that 
18. 
Many clouds. 
the smaller spots only dim. 
19. 
Clear and very calm. 
25- 
Pretty clear, little haze; at times unsteady. 
20. 
Many clouds. 
26. 
Clear though the spots somewhat swimming. 
Sept. 
i5- 
Clear sky. 
27. 
Clear. 
i7- 
Many clouds. 
28. 
Rather hazy. 
18. 
Clear sky. 
Mar. 
4- 
Hazy; the penumbras very indistinct; later clearer. 
20. 
Observations with interruptions by clouds. 
7- 
Clear, but swimming images; strong W. N. W. wind. 
22. 
Strong wind, almost a storm. Limbs and spots much 
11. 
Clear. 
trembling. 
i5- 
Hazy; images ill-defined. 
2 3- 
Clear. 
16. 
Clear. 
24. 
Clear but a strong gale is shaking the telescope. 
18. 
Clear and cold; spots much swimming. 
2 S- 
Many clouds, and observations for that reason hurried. 
19. 
Clear, though spots badly swimming. 
26. 
Violent gale; clear. 
20. 
Clear. 
28. 
Strong wind; great many clouds. 
22. 
Clear. 
3°- 
Clear and calm. Spots very much undulating, perhaps 
2 3- 
Clear; wind E.; afterwards hazy. 
from the sun heating the roof. 
2 5- 
Very hazy, especially at the end of the observations. 
Oct. 
6. 
Clear with clouds. 
28. 
Clear. 
7* 
Clear and calm. 
3i- 
Very clear, but limbs and spots much undulating. 
10. 
Clear sky. 
Apr. 
4- 
Very clear and calm. 
12. 
Clear. 
5- 
Clear, bright, and pretty steady, though heavy west wind. 
IS- 
Hazy. 
6. 
Clear, spots a little blurred; wind E. 
16. 
Hazy, but images steady. 
7- 
Hazy, with clouds; the spots and limbs very steady and 
18. 
Hazy. 
well seen. 
19. 
Calm though a little hazy; undulating. 
8. 
Clear. 
24. 
With clouds. 
9- 
Clear; strong E. wind; spots distinct, limbs undulating. 
25- 
Clear with a few clouds. Limbs much undulating. 
10. 
Clear; E. wind; spots and limbs a little dancing. 
27. 
Clear with clouds, the spots, however, very badly swim- 
11. 
Clear; spots a little swimming. 
ming. 
19. 
Many clouds. 
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