DEDICATED TO THE MEMORY OF 



William Albert Setghell 



Professor Emeritus of Botany 



of the 



University of California 



Foremost American phycologist of this century; a scien- 

 tist of rare wisdom and breadth of understanding; a 

 teacher who endeared himself to thousands; a man of un- 

 forgettable personality; a prince of good fellows. 



It was the author's very great privilege to have been 

 among Professor Setchell's closest associates during the last 

 years of his life, and to have been his last and youngest 

 pupil. It was with him, under his guidance, and inspired 

 by his great understanding and kind helpfulness that this 

 work was done. By the younger of his friends and associ- 

 ates during more recent years he was known as "Uncle 

 Bill," and by our adoption into his family of friends we 

 fortunate ones gained a treasured intimacy with this great 

 man. He will not be forgotten, for, as his life has been an 

 inspiration, so his memory will be a shrine. 



— at the time of his death, 

 April 5, 1943 



