Intervals depending upon Upper Transits T.M. 
D? AM , 
lower t Interpolated J Transits A.M. Mil Trans MUCCCmw 
JM P. M. 
Diagram, showing the Diurnal incijuahti/ in the Interval and in the heiaht tor /he middle of every month in the Year. 
thorn Observations at th&Tondon. DoAs _ See Table XXI 
INTERVAL INTERVAL HEIGHT HEIGHT 
In these curves the abscissa > represents the time of the. Moon's t/'ansit two days previous 
Observation 
Theory 
