108 SUMMER IN A BOG. 



should the depressions be clay-lined, the ac- 

 enmulatuig water forms lakes, which are known 

 to the geologist frequently as kettle-holes. 



These lakes have become popular summer 

 resorts of neighboring cities and towns. They 

 may, in time, follow the fate of others of their 

 kind, which have been filled with peat and marl. 

 The chara foetida takes possession of the slow- 

 moving streams and small bodies of fresh 

 water, requiring constant dispossession if the 

 channel is to be kept clear. 



Situated between Navarre Street on the 

 north and Fairfield Avenue on the south (in 

 Canton) is a wonderfully valuable — to the bot- 

 anist — strip of swamp, through which runs 

 Nimishillin Creek. An effort is at present be- 

 ing made by Mrs. Case and other friends of 

 nature to save it from the encroachments of 

 the manufacturer and reserve it to the city as a 

 Nature park. 



Originally a tamarack forest, as these trees 

 disappeared the sphagnum and pitcher-plants 

 (Saracenia purpurea) went along. Still a 

 wealth of rare florae remains. It was in the 

 early part of the month of August that Mrs. 

 Case introduced me to this interesting spot. 

 It lies immediately below a line of houses and 

 appears to have been considered a suitable 

 catch-all in disposing of rubbish in house-clean- 



