Bui. 39, Biological Survey, U. S. Dept. of Agriculture. 
Plate XI. 
Work of Sapsucker on Hickory, Pitch Pine, Red Cedar, and Sassafras. 
[1, Checks and iron streak in hickory handle. 2, Stains and resin deposit in pitch pine. 3, Stain, 
resin deposit, and tubercles in red cedar. 4, Sassafras, partly killed by sapsucker pecking- and 
healing over. 5, Longitudinal section of same; checks and stains.] 
