Plate Ill. 
wok ete 4d Sgt eda Ww 
~—— Kw Bt [tat Jas bys? 
s 
‘ V2 bed 304 a yd at vy 
bw v4 we. 
~ Vy 
? 
X 
Vol. 
*) 
1875. 
AM. JOUR. SC 
