TYPE PREPARATIONS 59 



Stem of Horsetail, ' Equisetum telmateia.' Fixed with. cHromo-acetic solution. 

 Cut transverse sections of stem ^j j5„ of an incli in thickness, immediately below 



tlie vegetative bud. Place tbe sections in alcobol. 

 Manipulate Nos. 1 and 11. 



Compare tbe preparation with. Fig. 31. Plate IX. 



Yegetative Bud of Horsetail, ' Equisetum telmatia.' Fixed as above. 

 After celloidinizing the bud, 



a. Cut transverse section ^/eoo of an inch in thickness. Place the sections in 



alcohol. 



b. Cut radial longitudinal section ^ j eoo of an inch in thickness. Place the 



sections in alcohol. 



c. Cut radial longitudinal section ■'^/i5oo of an inch in thickness, through an 



apical or lateral growing point. 



Manipulation for a, No. 1. Manipulation for b, Nos. 1 and 11. 



Manipulation for c. No. 6. 



Compare the preparations with Figs. 32 — 34. Plate IX. 



LEAF STRUCTURE. 



Leaf of Pine, 'Pinus maritimus.' Fixed with 92% alcohol. 

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



alcohol. 



Bleach the sections. 



Manipulate Nos. 1 and 11. 



Compare the preparation with Fig. 35. Plate X. 



Leaf of Marram Grass, 'Ammophila arundiacea.' Fixed with 92% alcohol. 

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



alcohol. 



Bleach the sections. 



Manipulate Nos. 1 and 11. 



Compare the preparation with Fig. 36. Plate X. 



