PLATE LII 
Fig. 2.—Split radial face of a creosoted hickory block, showing tyloses (T) in a large 
vessel. Magnified 12 diameters. Tyloses tmcolored; remaining wood substance 
black with creosote. 
Fig. 2.—Tangential section of Aesculus ociandra , yellow buckeye X 680, showing 
two tyloses (T) which have grown out of one medullary-ray parenchyma cell (MR). 
Shows open connection between the tyloses and parenchyma cell. 
Fig. 3.—Cross section of valley oak, a white oak, showing young tyloses ( T ) next 
the bark ( B ) in vessels (F). 
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