430 



Foreign and Miscellaneous Intelligence. 



made at Berlin and Freiberg are not yet come to, but shall be given 

 as soon as possible. 



The numbers of this table give only the variations of the deviation, 

 and are in no definite ratio to the absolute deviation. In the obser- 

 vations of St. Petersburgh and Nicolajew, an increase in the minutes 

 and millimetres signifies a western deviation, and vice versa in 

 Kasan; 1 millimetre is equal to 14' 3". 



It will appear from these combined observations, that the magnetic 

 needle, in all three places, had a very irregular course at the same 

 time^for, as in St. Petersburgh and Nicolajew, the oscillations began 

 at about 9 o'clock, and in Kasan at 20 min. past 10, these times will 

 be found nearly to agree ; as, owing to the different longitude, 9 at 

 St. Petersburgh corresponds with 9 and 7 minutes in Nicolajew, and 

 with 10 and 16 minutes at Kasan. 



The order of the variation will be seen in a more striking manner 

 in the following table, in which the observations, which were made 

 at the same moment (or nearly so), are placed in the same line, and 

 the millimetre of the observations at Nicolajew and Kasan are 

 reduced to arcs ; besides, I have taken 42' 00" as the ordinary de- 

 viation at the three places, which may be done, as the observation 

 refers only to the relative, and not to the absolute deviation. An 

 increase in the numbers signifies an increase of the western deviation. 



From this table it will appear that the course of the needle was 



