PLATE 18.— CATALPA, AILANTUS, AND HONEY LOCUST. 



]. Hardy Catalpa, leaves and Howers. 2. Hardy Catalpa, fruit. 3. Ailaiitus, 

 leaf and fruit. 4. Honey Locust, leaves and fruit. 5. Street of Honey 

 Locusts: G Street, corner Twelfth Street, S. E., Wasliing-ton, D. C. 



