32 



REPORT 1872. 



We give now the result of our investigation, viz. the Gaussian constants for 

 1829, as resulting from all observations that we have found or made avail- 

 able for the purpose, and thereby forming the best theoretical representation 

 of terrestrial magnetism which we think can up to the present be effected. The 

 probable error that is subjoined to each of these numbers shows to what 

 exteat it may be relied upon; but as these valuations are only founded on 

 the differences between the values that were assumed for our 270 normal 

 elements and those which the new constants assign to the same, the mean of 

 their amount may perhaps be still altered by the more numerous comparisons 

 of directly observed and newly calculated elements that will soon be instituted 

 and published. 



The Gaussian constants for 1829, and their probable errors. 



The derivation of the most interesting consequences of these numerical 

 results and a complete comparison of observed magiietic elements with both 

 their representations by the old and by the newly founded theory being deferred 

 for the moment, in the mean time the following shows the effect of our 

 performance for those parallels that were especially considered. 



* Each =0-00349412 German unit of absolute intensity 

 =0-0075781 English 



