UNIVEESITY OF CALIFORNIA PUBLICATIONS— (Continued) 



6, 7, 8. A Rubber Plant Survey of Western North Auierica. I. Chrysothamnus 

 natiseostis and Its Varieties, by Harvey Monroe Hail. II. Chrysil, a New 

 Rubber from Chrysothamnus nauscoAut', by Harvey Monroe Hall and 

 Thomas Harper Goodspeed. III. The Occurrence of Rubber in Certain 

 West American Shrubs, by Harvey Monroe Hall and Thoraas Harper 

 Goodspeed. Pp. 159-278, plates 18-20, 8 figures in text. November, 1919. 1.25 



9. Phycological Contributions. I, by William Albert Setchell and Nathaniel 



Lyon Gardner. Pp. 279-324, plates 21-31. April, 1920 .50 



10. Plantae Mexicanae Purpusianae. X, by Townshend Stith Brandegee. Pp. 



325-331. December, 1920 10 



VoL 8. 1919-. 



1. The Marine Algae of the Pacific Coast of North America. Part L 



Mysophyceae, by V/ilUara Albert Setchell and Nathaniel Lyon Gardner. 



Pp. 1-138, plates 1-8. November, 1919 $1.50 



2. The Marine Algae of the Pacific Coast of North America. Part IL 



Chlorophyceae, by William Albert Setchell and Nathaniel Lyon Gardner. 



Pp. 139-374, plates 9-33. July, 1920 2,75 



Vol. 9. A Report upon the Boreal Flora of the Sierra Nevada of California, by Frank 



Jason Smiley. Pp. 1-423, plates 1-7. October, 1921 5.00 



