EEPORTS OF ASTRONOMICAL OBSERVATORIES. 739 



Work proposed for the coming year (1881) : 

 Contiuiiation of former series. 



Principal publications of the Observatory during the 

 YEAR (1880) : 



E. Wolf, Astronomiscbe Mittbeilungen, published in " Vierteljabrs- 

 schrift der Naturforscbenden Gesellscbaft in Ziiricb." 

 Additional information: 



The Observatory of the Polytecbnikum is mainly used for the prac- 

 tical training- of tbe students. Tbe scientific results are voluntary 

 contributions by the director and assistant. 



