xviii CONTENTS 



PAGE 



B. Lichens as Medicine 40S 



a. Ancient remedies 



b. Doctrine of "signatures" 



c. Cure for hydrophobia 



d. Popular remedies 



C. Lichens as Poisons 410 



D. Lichens used in Tanning, Brewing and Distil- 

 ling . . . .411 



E. Dyeing Properties OF Lichens . . . .411 



a. Lichens as dye-plants 



b. The orchil lichen, Roccella 



c. Purple dyes: orchil, cudbear and litmus 



d. Other orchil lichens 



e. Preparation of orchil 



f. Brown and yellow dyes 



g. Collecting of dye-lichens 



h. Lichen colours and spectrum characters 



F. Lichens in Perfumery 418 



a. Lichens as perfumes 



b. Lichens as hair-powder 



G. Some minor Uses of Lichens 



Appendix 

 Addendum 

 Bibliography . 

 Index 



420 



421 



422 



423 

 448 



