LONGITUDE OF ALEXANDRIA. 327 



COMPARISONS of CHRONOMETERS at ALEXANDRIA (by coincidence of beats). 



ERRORS and RATES of the MEAN SOLAR CHRONOMETER HEWITT 890 from the 

 COMPARISONS with LOSEBY 102, made near the Epochs of Observations of Stars. 



t Possibly some error ; the comparisons are difficult to understand. 



J The Error, November 23, is obtained by combining comparisons made 17 hours before and 8 hours after the 

 observations for local time. 



