e m 



. ! r:i-il<.d Ou uB-MAt.uwd<U. 



Fig i.'i. a , Mwalhcrtwmj. HAkbSvu-. 2.46. Sce&delfwncom': fs-Jfatu 



Jhitb/hed* by <Sr>u£k, HUUr&Cf SI Cornhdl. 



I he University ot {jtucagy i-i^cmes 



