EP1 CYCLOIDS. 



Trans. Roy Soc pdmf 731 XXIV Fl. I 



a! /J •' 



Fig 



A _ .750 00 

 B = .250 000 



oC /3 Z ■ ■ - 4 





A _ .714- 286 

 B _ .285 714 



at ■ /3 ■■ ■ ■ 2> ■ - 6 



Fig. ZO 



rtAXJefaiston.XS&ibuyk. 



