70 MICROSCOPICAL RESEARCH 



Eaphides in aerial root of monstera, ' Monstera deliciosa.' 



Fixed with chromo-acetic solution. 



Infiltrate the spemen with paraffin. 



Cut longitudinal median sections of apex of root ^/aooo of an inch in thickness. 



Mount the sections as directed for the paraffin method. 



Manipulate No. 6. 



Compare the preparation with Fig. 81. Plate XXII. 



Endosperm in seed of castor-oil plant, 'Ricinus communis.' 



Fixed with 92% alcohol. 

 Remove the kernel from the husk, and divide in half transversely with a sharp 



section-knife. 



Celloidinize the specimens. 



Cut transverse sections ^/i2oo of an inch in thickness. Place the sections in 



alcohol. 

 Manipulate No. 6. 

 Compare the preparation with Fig 82, (unstained). Plate XXIII. 



Laticifbeotjs Yessels in root of ' Scorzonera hispanica.' 



Fixed with chromo-osmo-acetic solution. 

 Cut longitudinal sections ^/eoo of an inch in thickness. Place the sections in 



alcohol. 



Manipulate No. 3. 



Compare the preparation with Fig. 83. Plate XXIII. 



Laticiferous Vessel in stem of "Euphorbia splendens.' 



Fixed with ahsolute alcohol. 

 Cut longitudinal sections of stemi/i„|,oof an inch in thickness. Place the sections 



in alcohol. 



Manipulate No. 1 or 6. 

 Compare the preparation with Fig. 84. Plate XXIII. 



