184 
The times of four minima and three maxima have been 
obtained and are as follows 
Principal Minima: 
1880, September 27. 
1881, November 17. 
Secondary Minima : 
1880, January 14. 
1881, March 11. 
Maxima : 
1880, February 24. 
„ December 27. 
1881, April 29. 
The secondary minima give the period = 422 days. 
The principal „ „ =416 „ 
The maxima of Feb. 24, 1880, and Apl. 29, 1881 = 430 days. 
The mean period is therefore about 423 days. 
The interval from the principal to the secondary minimum 
is 169 days, and from the secondary to the principal mini- 
mum 254 days. 
The highest maximum magnitude yet observed is 8' 5, 
and the lowest minimum 13 0; the range of variation being 
therefore 4-5 magnitude. 
V Geminorum. 
1855-0. a = 7h. 15m. 2s. 3 = +13° 21-9'. 
My observations of this star have yielded the times of 
two maxima and two minima as follows 
Maxima : 
1880, February 6. 
„ November 9. 
Minima : 
1881, March 28. 
„ December 28. 
