






PLATE XVIII 
Bul. 1282, U. S. Dept. of Agriculture 
ozIs JRangeu Apiwou [Py) ‘Jeo, jeurtou ‘F fsoavoyl odAI-O ‘Vv 
O 
GNOWIY MO1TS9IG AHL AO OILSIYNSALOVYVHD SSAVA NI NOILVINVA 

SS es ee 



