OUR PRICELESS SWALLOWS 



to him that the swift in flight used its wings alternately. 

 It would be an interesting bit of sport and scientific 

 research combined to secure a series of flight pictures 

 of the swift and try to find this out. I have thought 

 that sometimes I would squat on the ridge pole by some 

 favorably located chimney to which swifts resorted 

 and see if I could get some pictures. Who else will 

 try it? 



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