Mr. Rumker on the Solar Eclipse of May 15, 1836. 181 



given in the Nautical Almanac, which is further corroborated 

 by the observations made at Copenhagen, Koenigsberg, &c. 



In comparing the observations made at places situated on 

 the borders of the Annulus, with the computation according 

 to the elements of the Nautical Almanac, I find a better ac- 

 cord by assuming for latitude correction — 7'''63, and for 

 correction of the sun's semidiameter -^\"*5y and for correction 

 of the moon's semidiameter +0''*5. 



These corrections have been previously applied in the fol- 

 lowing calculations. B means beginning ; BA, beginning of 

 annulus; EA, end of annulus; E, end,-d. (0+ ([ ), difference 

 of sum or difference of semidiameters ; d /3, of latitude ; d tt, 

 of parallax. 



