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THE NATURE-STrDY REVIEW 



[6:5-May. 1910 



is traveling directly across the Calumet and unless the predom- 

 inating effect of the wind changes, the dune will have crossed 

 the river in a few years. 



TENTH TRIP — PALOS PARK 

 Southwest of Chicago at Palos Park is a deciduous oak 

 woods containing red oak, white oak, burr oak, ash, haw, and 

 crabapple trees. Flowing through the forest is a spring-fed 

 stream. The drinking water for the day was furnished by 

 springs along the brook. On this trip we found a red-eyed 

 vireo's nest and five young. 



Such are the main outlines of the trips. We did not con- 

 fine our attention to the things mentioned but had those things 

 as a main object in view. It goes without saying that the boys 

 took interest. All normal boys are interested in outdoor stud- 

 ies of some kind. Just how much the boys got out of the trips, 

 no one can tell. It is probable, however, that the parents can 

 tell more of what the boys seemed to get from the trips. Being 

 so thoroughly interested in the work, probably one's opinion is 

 biased but it would be hard to find a more wholesome and profit- 

 able employment for the boys during the Sunday-school's vaca- 

 tion period. 



Chas. W. Finley, 

 Otis W. Caldwell. 



