324 . ALEXANDER BRAUN. - 
collections; and he enriched the list of Baden plants considerably in 
is numerous excursions, his material being afterwards incorporated 
2 : 
gradually weakened, and was at last broken off, and the latter's 
engagement to Emy Braun was dissolved. Agassiz also had a little 
Characee and Iscetes appeared in 1847-49 in the “Flora” and 
ooker’s “Journal of Botany.” He also continued his com- 
munications to the meetings of naturalists, 
Hi Betrac 
Verjiingung in der Natuc” was published at Leipzig, in 1851, and 
Phenomenon of Rejuvenescence in Nature,” and published by the 
Royal Society in 1853. This contained many new facts in morphology, 
Al 
r, 1850, Braun received calls to the Universities of 
n Octo 
Giessen, Erlangen, and Marburg, 1g, who came himself from ~ 
reached him from Berlin to the Proféssorship of Botany and 
Directorship of the Herbarium and Botanic Gardens, vacated by 
sessions). In the proper organisation of the, Botanic Gardens Braun 
at first encountered much difficulty, which was increased by the low 
the gardens delayed much the carrying out of the plans of the 
Professor. The correct naming and cultivation of the plants in the 
_ Gardens received his special attention, in particular the Selaginella, 
S Isoetes, and Marsiliacee, on which he published several further papers 
