114 Friedrich Witheln August Argelander. 
training and education. Political events brought bim into 
very early connection with historic names. After the battle of 
Jena the Prussian royal family left Berlin, and took up their 
abode for some time at Memel. e Crown Prince (afterwards 
thereto by the lectures of Bessel. This led him to request the 
latter to entrust him with some calculations for the Observa- 
His first great labor was assisting Bessel in his survey of the 
uth ig 
as that in the subsequent reductions. These zone observations 
commenced in August, 1821; earlier in that year Argelander 
was engaged in observations of stars at low altitude to be 
in the formation of Bessel’s refraction tables, and also in Feb- 
ruary and March in the observation of the Comet of 1821. 
On the Ist of April, 1822, Argelander took his degree 4% 
— of Philosophy, after writing a paper, De Observationtbus 
icis a Flamsteedio institutis. Later in the same JY’ 
