19G 



REPORT ON 



Comparing these computed values with the values before founu directly from the 

 observations, the following residuals are obtained: 



VALUE OF THE COMPUTED MINUS THE OBSERVED COEFFICIENTS OF THE DEVIATIONS OF THF. 



ADMIRALTY STANDARD COMPASS. 



VALUE OF THE COMPUTED MINUS THE OBSERVED COEFFICIENTS .OF THE DEVIATIONS OF THE 



AFTER BINNACLE COMPASS. 



VALUE OF THE COMPUTED MINUS THE OBSERVED. COEFFICIENTS OF THE DEVIATIONS OF THE 



AFTER RITCHIE COMPASS. 



