4:82 Scientific Proceedings, Royal Dublin Society. 



DESCRIPTION OF PLATES. 



All the figures are from microphotographs with a magnification of 

 31 diameters. Actual diameter of field is 2 mm, in each case. 



Plate XXII. 

 Fig. 



1. Cross-section of wood of Swietenia mahagoni, No. 48. 



2. Tang, section „ „ „ „ 



3. Radial section „ „ „ „ 



4. Cross-section of inner wood of S. mahagoni. Herbarium specimen. 



5. Tang, section of wood of 8. mahagoni, No. 45. 



6. „ „ Sivietenia sp., No. 155. 



Plate XXIII. 



7. Cross-section of wood of Swietenia macrophylla, No. 87. 



8. Tang, section „ „ „ „ 



9. Radial section „ „ „ „ 



10. Cross-section „ Cedrela oclorata, No. 191. 



11. Tang, section „ „ „ „ 



12. Eadial section' „ „ „ „ 



Plate XXIV. 



13. Cross-section of wood of Carapa guianensis, No. 162. 



14. Tang, section „ „ „ „ 



15. Radial section „ „ „ „ 



16. Cross-section „ Carapa sp. No. 216. 



17. Tang, section ,. „ „ 



18. Radial section „ „ „ 



Plate XXV. 



19. Cross-section of the wood of Protium altissimum, No. 164. 



20. Tang, section 



21. Radial section 



22. Cross-section „ Gariniana pyriformis, No. 146. 



23. Tang, section 



24. Radial section 



