LINNEAN SOCIKTV OF LONDON. 9 1 



As he had, liowever, to earu his living as a private tutor, it was 

 uot until 18U6 — when the Danish government granted him a 

 scholarship — that lie could apply himself wholly to his studies. 

 Having been appointed a science master in a Copenhagen gym- 

 nasium, lie begun to occupy himself more exclusively with botany 

 and chemistry. 



Apart from a preliminary communication on a peat moor in 

 Denmark, a subject which he did not follow up, his first publica- 

 tion was on "De Danske (ijodningssvampe (Fungi fimicoli Danici/' 

 in Vidensk. Medd. Copenhagen, 1876, pp. 207-354. 



In 1878 he entered the physiological laboratory at Carlsberg, 

 near Copenhagen, where he at once began that brilliant series of 

 researches on fermentations wliich constitute his life-work. He 

 initiated it w-itb a dissertation, " Contributions to our knowledge 

 of the organisms which are found in beer and beer wort and are 

 able to live therein " ; ami having taken his doctor degree in 1S79 

 he was appointed Director of the Carlsberg Laboratory, which 

 post he held until his death. 



Hansen's biological researclies on the organisms of fermenta- 

 tion, and among them mainly of the Saccharomyceta?, were 

 carefully planned and carried out on ingenious methods which 

 assured a degree of precision not attained before. They were 

 fruitful in theoretical results bearing on the biology of those micro- 

 organisms, and in many respects of the physiology of the cell 

 generally ; but thanks to his practical genius, they also led in the 

 industries depending on fermentation to technical improvements 

 of the greatest importance and in some respect to changes which 

 almost revolutionized them. His numerous publications are 

 scattered through the Comptes Hendus of the Carlsberg Labora- 

 tory, the Centralblatt fiir Bacteriologie und Parasitenkande, the 

 Annals of Botany, the Zeitschrlft fiir das gesammte Brauwesen, 

 etc. An independent publication, " Untersuchungen aus der 

 Praxis der Garungsindustrie " (Practical Studies in Permentation, 

 Engl, transl. by Miller), did uot get beyond part ii. 



In 1898, E. C. Hansen was elected a Foreign Member of the 

 Society. [O. Stapf.] 



A¥iLLiAM HiLLUOUSF, whoso death occurred at Malvern Wells on 

 January 27th, 1910, was appointed to the professorship of Botany 

 at the Mason Science College, Birmingham, in April 1882. He 

 had for some time suffered from chronic ^^duioiiary trouble, and 

 in September 1909 he resigned his professorship at the Uuiversit)^ 

 of Birmingham. Unfortunately he lived but a short time to 

 enjoy his retii'ement. 



He was born at Bedford on December 17th, 1850, and in course 

 of time became an assistant at the Bedford Modern School. It was 

 during this period that he began his study of Botany, working 

 more especially the Bedfordshire flora, and he was instrumental 

 in founding the Bedfordshire Natural History Society. He 

 became a Pellow of the Liunean Societv in 1876. In 1877 he 



