APPENDIX B 



THIS appendix includes in a tabular form, as being convenient 

 for reference, the more important reactions of the parts of the 

 vegetable cell, and of bodies commonly contained in it. 



Cellulose Cell- walls, 

 i. Coloured faintly yellow by iodine. 



ii. Swollen and ultimately dissolved by sulphuric acid. 



iii. Coloured blue with iodine and sulphuric acid. 



iv. Coloured blue or violet with chlor-zinc-iodine. 



v. Swollen and dissolved by ammoniacal solution of cupric 

 hydrate. 



vi. Stained by solutions of carmine or of haematoxylin which 

 contain a mordant, by methylene blue, and in various degrees 

 by other aniline colours. 



la Knitted Cell-walls. 



i. Coloured distinctly yellow by iodine, and by chlor-zinc- 

 iodine, but in the case of bast-fibres the tint may vary to sherry 

 brown, or even pink. 



ii. Coloured brown and swollen by iodine and sulphuric 

 acid. 



iii. Coloured bright yellow by acidulated solution of aniline 

 sulphate. 



iv. Coloured red with acid solution of phloroglucin (see 

 Appendix A). 



v. Coloured green when exposed to light after treatment with 

 carbolic and hydrochloric acids (see Appendix A). 



