PROCEEDINGS OF THE SOCIETY. 265 



13. Transverse section of stem of "Wound-wort, Stachys sylvatica. 

 Cut Tt ^ Stain, carmine and malachite green. 



14. Transverse section of stem of Birthwort, Aristolochia clematilis. 

 Cut irro- Development of primary and secondary bundles. Stain, 

 carmine and malachite green. 



15. Transverse section of stem of Dracsena, Cordyline rubra. Cut 

 t^o To illustrate the formation of bundles from Cambium zone. 

 Stain, carmine and malachite green. 



16. Portion of a transverse section of stem of Lime-tree, Tilia 

 europcea. Cut t^W Stain, carmine and malachite green. 



17. Longitudinal tangential section passing through bast area of 

 last slide. Showing bast fibres and connective tissues. Cut -j-^ 

 Stain, hematoxylin and safranin. 



18. Longitudinal tangential section passing through xylem elements 

 of same. Cut ^V Stained as last slide. 



19. Transverse section of stem of Sunflower, Helianthus annum. 

 Cut 4^5- Showing primary and secondary bundles. Stain, carmine 

 and green. 



20. Longitudinal tangential section of last slide, passing through the 

 inner margin of a primary bundle. Cut T ^V<r Stained as above. 



21. Longitudinal median section through apex of developing pine- 

 stem. Showing meristem tissue in active state of division. Cut TrgVo 

 Stain, brazilin. 



22. Transverse section of stem of Pinits, one inch below growing 

 point. Cut ToVir Stain, aniline blue and gossypimine. Showing 

 formation of xylem plates to primary bark. 



23. Transverse section of same stem four inches below growing point. 

 Showing commencement of secondary thickening, and development of a 

 lateral branch. Stained as above. 



24. Longitudinal (radial) section of same, throwing off a lateral 

 branch. 



25. Transverse section of a resin passage of same. Showing the 

 thickened strengthening band of sclerenchymatous tissue. 



26. Transverse section of Old Pine Wood (timber), after completion 

 of secondary thickening. 



27. Radial longitudinal section of same. 



28. Tangential longitudinal section of same. 



29. Transverse section of stem of Indian Corn, Zea mays. Cut ■$%■$ 

 Stain, carmine and green. 



30. Longitudinal section of same. Cut -^^ Stained as above. 

 Passing through the annular vessel. 



31. Transverse section of a bundle rhizome of Fern, Pteris aauilina. 

 Cut 4^ Stain, carmine and green. 



32. Longitudinal section of same. 



33. Transverse section of stem near apex, Horsetail, Eyuisetum 

 telmatia. Cut yi^ Stain, carmine and green. 



34. The same. Enlarged bundle. 



35. Transverse section of vegetative bud of same. Showing develop- 

 ment of leaves from the axis. 



April 20th, 1904. t 



