90 
Interval from maximum to mean magnitude... = 40*4 days 
Interval from mean magnitude to minimum... =48-0 days 
Interval from mean magnitude before to mean 
magnitude after maximum - 61*4 days 
Interval from mean magnitude before to mean 
magnitude after minimum -91-0 days 
A faint secondary maximum is indicated at 63 days after 
the principal maximum.- 
Mr. Knott, F.R.A.S., has kindly favoured me with the 
results of his observations of T Aquilse for the past year, and 
from the following comparison it will be seen that, with the 
exception of the time of the August minimum, they are very 
closely accordant with my own : — 
Maxima. 
Baxendell. Knott. 
June 30 — 10*1 mag. July 2 — 10*1 mag. 
Nov. 22 — 9 '4 mag. Nov. 20— 9-4 mag. 
Minimum. 
Aug. 31 — 11*5 mag. Aug. 22 — 11*4 mag. 
The place of T Aquike for 1865 is 20 h 5 m 25-4 s +l 5° 13*4', 
and the calculated times of its maxima for 1866 are April 
26*3 and September 25*7. 
MEAN LIGHT-CURVE OF T AQUIL^, 
AS DERIVED EROM ALL THE OBSERVATIONS MADE AT Mr. WORTHINGTON’S 
Observatorv during the years 1863 - 5 . 
Mag. 
