Dec, 1909.] 



Evaporation in a Bog Habitat. 



21 



weeks, they were continued until Oct. 2. Unfortunately, the 

 instrument in the central zone was disturbed on August 21, and 

 on September 11, had disappeared entirely. Temperature 

 readings were also taken in the two zones. 



Fig. 1. Central Zone Station. 



Fig. 2. Station in Maple- Alder Zone. 



It was thought that an average of the precipitation and tem- 

 perature records taken at the stations of the Weather Bureau at 

 Pataskala, Gratiot, and Granville, would represent, approx- 

 imately, the meteorology of our station at the bog. The records 

 of wind velocity which are necessary to make the observations 

 complete were not obtainable. 



The climatology and evaporation data for the bog station are 

 given in the table below: 



