64 MICROSCOPICAL RESEARCH 



FiowEE-BUD OF Ptjeple Ieis, ' Iris Germanica.' Fixed with 92% alcoliol. 



Celloidinize the specimen. 

 Cut transverse sections ^ 1 500 oi an inch in thickness. Place the sections in 



alcohol. 



Manipulate No. 1. 



Compare the preparation with Fig. 55. Plate XV. 



Mature Flowee-btjd of Lily, 'Lilium croceum.' 



Fixed with chromo-acetic solution. 

 Celloidinize the specimen. 

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



alcohol. 



Manipulate No. 1. 



Compare the preparation with Fig. 56. Plate XVI. 



Immature Flower-bud of Lily, ' Lilium croceum.' 



Fixed with chromo-acetic solution. 

 Dissect out the anthers and the ovary. 

 Celloidinize the specimens. 



a. Cut transverse sections ^/looo of ^^ ii^ch in thickness of the anther. Place the 



sections in alcohol. 



b. Cut transverse sections ^/looo of an inch in thickness of the ovary. Place the 



sections in alcohol. 



Manipulate No. 6. 

 Compare the preparations with Figs. 57 — 58. Plate XVI. 



Catkin of Sallow, ' Salix caprsea.' Fixed with chromo-acetic solution. 



Celloidinize the specimen. 



Cut longitudinal median sections ^ j mo of an inch in thickness. 



