.1901.] Magnetic Observations in Egypt, 1893 — 1901. 



3 



The times given are those of the middle of the observation, i.e., for 



The time of the horizontal force value is given as the middle of the 

 time of the vibration observation. 



Where one value is given for the dip one needle was used ; where 

 two values, the value obtained from each is given. 



Deflection observations as well as the vibration observation were 

 made on each occasion for the observations given in Table 11(6) ; in 

 the observations given on page 22 it is mentioned when it was not 

 possible to take them. 



Girga — 



Declination observation 



First vibration 



Second vibration 



Deflection 



8.58—9.11 

 9.14_9.27 

 9.34—9.47 

 10.35—11.0 



Mean. 

 9.5 

 9.20 

 9.40 



B 2 



