6o MICROSCOPICAL RESEARCH 



Leaf of Oechis, ' Cypripedium Sp.' Fixed with 92% alcohol. 

 Cut transverse sections ^ j ioo of an inch in thickness. Place the sections in 



alcohol. 



Bleach the sections. 



Manipulate Nos. 1 and 11. 



Compare the preparation with Fig. 37. Plate XI. 



Leaf of Cycas, ' Cycas revoluta.' Fixed with the chromo-acetic solution. 

 Cut transverse sections ^jrso of an inch in thickness. Place the sections in 



alcohol. 



Manipulate No. 8. 



Compare the preparation with Fig. 38. Plate XL 



Leaf of Bottle-betjsh, ' Metrosideros verni.' 



Fixed with the chromo-acetic solution. 

 Cut transverse sections ^/aess of an inch in thickness. Place the sections in 



alcohol. 



Manipulate No. 8. 



Compare the preparation with Figs. 39 — 40. Plate XI. 



Leaf of Tkadescantia, ' Tradescantia discolor.' 



Fixed with the chromo-acetic solution. 

 Cut transverse sections '/500 of an inch in thickness. Place the sections in 



alcohol. 



Manipulate No. 8. 



Compare the preparation with Fig. 41. Plate XII. 



Cuticle from Leaf of Monkey-puzzle, 'Araucaria imbricata.' 



Preserved in 92% alcohol. 



a. Cut the leaves into half-inch squares with a sharp section-knife. 



b. Place the pieces in a test-tube with a mixture of equal parts of nitric acid 



and water. 



