PART I. : TEMPERATURE OBSERVATIONS IN THE MADUSEE, POMERANIA. 621 



and Herr Muller, at Werben Professor Halbfass himself was in charge, while the 

 author divided his attention between Seelow and Moritzfelde. 



THE MADUSEE. 



KILOMETRES 



1 



J I 



A/OR/TZEELDE 



VERC/iLAND 



HL.KUSSOW 



HL/A/OW 



GR. KUSSOW 



m WERBEM 



HORST 

 Fig. 1. 



