‘PLATE X,. 
Bul. 176, U. S. Dept. of Agriculture. 
‘OUBU JUIIOYIP B SIBI 10}4 CT out ySsnoyie ‘orgo Arve Jo od4} poos wv yuosordor G9T pUB LCT ‘SON “VIOYV ATIVY OZ St 69T 1oqny SOTO AVG 1B LCT pus Zc_T su9qny, 
"G dNOYS OL ONISNO1SG SAOLVLOd 
