Bui 71. Bureau of Chemistry. U. S. Dept. Agr. 



PLATE I. 



FIQ. 1. MAIN BUILDING, ROYAL POMOLOGICAL SCHOOL, 

 GEISENHEIM, GERMANY. 



FIQ. 2. GIANT TREE OF PYRUS (SORBUS) DOMESTICA, TAUNUS, 

 GERMANY. 



