884 OBITUARY, 
His passion for ae classification of Alge included the whole group 
in its widest sen e, from Diatoms and Cyanophycee upwards, fr esh- 
increased the catalogue of names of Algw. There are stages in the 
development of a study when such work is valuable, and Kitzing 
worked at a period when it was even necessary. The more critical 
labours of J. G. Agardh, happily still with us and at work, followed 
and reduced to a scientific system much that was a chaotic assem- 
blage of names in Kiitzing’s hands. He did very much the same 
and a pee sis Diatomacearum in 1834. Ten s later, his be 
known work on Diatoms appeared, Die Kie sistahaRben Bacillarien 
oder Diatomeen. The titles of two papers he published about this 
a ote esate niedrer ae 8 men in héhere and Ueber die 
ung der Infusorien in niedre Algenformen, exhibit the stage 
ie hacer of Phycology at this time. His Phye cologia Generalis,” 
a most notable production, belongs to this period, and following it 
a few years later, viz., in 1849, his Species Algarum. The great 
work of Kiitzing’s life, however, was the Tabule Phycologica, in 
nineteen volumes. Its publication was begun in 1845, and com- 
pleted in 1869. This book, which every working phyco shield refers 
to daily, is a monument of his diligence and zeal for his study, and 
reless printers to wars of nations, &c., that combined to 
ghebrors the Peat of that great book. Many of the plates, he 
$ us, were drawn under circumstances of ‘‘deep sorrow and 
ound by the sick- bed and death-bed of beloved children.” He 
was not fortunately inspired in two books, outside his proper 
subject; the Grundziige der Philosophischen Botanik, and Die 
Sophisten und Dialektiker, die gefiihrlichsten Feinde der wissenschaft- 
lichen Botanik. The latter was a polemic against Schleiden, and a 
somewhat dull production for such literature. His herbarium of 
Alge has been for many years in Leyden, and his Diatom collection 
(some 2000 specimens) was acquired through 
Britich Museum about tp yng rough Eulenstein by the 
arrangem: is n or 
be honoured for well-directed diligence and energy in eet nging 
together great bodies of scattered facts and recor 7 tag 
G. M. 
