Trans. Am. Eiit. Soc. Vol. XXXIV. 



PI. XIII. 



76 



Ra+i^ii <ft iJj+4 & B» 



M, ,a Jt Rs + Ml 4t R,^s + Ml 



Mi + Cu,t^ + 1st + i!d + 3d A 

 Ut + "id + 3d A £■ Cm + 1st + 3d + 3d A 



R +lst R, 



BRADLEY ON EVANIID/E. 



