SOLAR THEORIES. 499 



loh. 05m. P. M. 

 8 05 



On the 2d at 6h. P. M., conjunction of Saturn and the Moon. Saturn 

 south 5° 36'. 



On the 3rd at yh. A. M., conjunction of Neptune and the Moon. Neptune 

 south 4° 07'. 



On the 3rd at ih. 46m. P. M., conjunction of Jupiter and the Moon. Jupi- 

 ter south 3° 04'. 



On the 4th at 2h. A. M., conjunction of Mercury and Venus. Mercury 

 east 1° 2'?'. 



On the 7th at yh. 32m. P. M., conjunction of Mars and the Moon. Mars 

 north 5° 51'. 



On the 8th at 4h. P. M., conjunction of Mercury and B'Scorpii. Mercury 

 south 0° 05'. 



On the loth at oh. P. M., conjunction of Venus and B'Scorpii. Venus 

 south 0° 05'. 



On the 19th at fa. 47m. P. M., conjunction of Venus and the Moon. Ve- 

 nus north 0° 12'. 



On the 20th at 5h. i6m. A. M., conjunction of Mercury and the Moon. 

 Mercury south 1° 22'. 



On the 26th at iih. P. M., opposition Mars and the Sun. 



On the 29th at 9h. 44m. P. M., conjunction of Saturn and the Moon. Sat- 

 urn south 5° 32'. 



On the 30th at oh. P. M., conjunction of Neptune and the Moon. Neptune 

 south 4° 6'. 



On the 30th at 4h. P. M., conjunction of Jupiter and the Moon. Jupiter 

 south 3° 6' 



SOLAR THEORIES. 



BY PROFESSOR H. S. S. SMITH, KANSAS UNIVERSITY. 



Prof. Young's recent work* on the Sun has given prominence to some changes 

 in the theory of the solar constitution, and it may be allowable to state what we 

 know and what we do not know of this difficult problem. 



Any sufficient theory of the constitution of the Sun must be one combining 

 many considerations, astronomical, physical, and chemical. It is a problem 

 difficult on account of its complexity, so many known and unknown quantities 



*The Sun; by Prof. C. A Young. Appleton, 1881. 



