ARTHUR LISTER, F.R.S. 333 
scope the process of karyokinesis in the living cells of the staminal 
hairs of T'radescantia, and, according to his invariable tom, 
ortly a 
he re- 
productive processes in Collema, which went far to substantiate 
Stahl’s views, since strongly confirmed by the work of Baur and 
Darbishire. 
time onwards he continued to ma e group his principal study, 
becoming recognized as the leading authority on these wonderful 
organisms 
A 
on Chondrioderma difforme and other Mycetozoa”’ ( ation of 
spores) (Ann. of Bot. vol. iv. 1890) ; “On the Division of Nuclei 
in the Mycetozoa” (Journ. Linn vol. xxix. 1893) ; ‘On the 
Cultivation of Mycetozoa from Spores” (Journ. B Hi 
burg when working with De Bary, and subsequently Greville’s 
collection from the Edinburgh University Herbarium. Later 
nski’s types, and made use of many other collections, as detailed 
in the introduction to his Monograph of the Mycetozoa. — This 
great work, published by the British Museum in 1894, gives a 
