6°2 Jeffrey . — Traumatic Ray-Tracheids in Cunninghamia sinensis. 
EXPLANATION OF PLATE XXXI. 
Illustrating Professor Jeffrey’s paper on Traumatic Ray-tracheids in Cunninghamia sinensis. 
Fig. i. Transverse section of the wood of Cunninghamia sinensis, x 50. 
Fig. 2. Longitudinal section through three annual rings of the same, showing a ray with marginal 
tracheids. x 60. 
Fig. 3. Longitudinal view of part of the same section, x 180. 
Fig. 4. Longitudinal section of a part of the same more highly magnified, x 500. 
Fig. 5. Longitudinal section through wounded region of a branch of Cunninghamia sinensk, 
showing normal wood on the left and wound-cap on the right, x 25. 
Fig. 6. Longitudinal section through the wound-cap of the same, x 60. 
