PROCEEDINGS OF THE SOCIETY. 
765 
Mr. T. Comber, in reply to the Secretary, said that ho had examined 
this first part of Prof. Cleve’s work, and thought it was, without exception, 
the finest contribution to diatomic literature which had ever been pro- 
duced ; the second part, he understood, was already in the press. It 
represented the careful work of eight years, and had been carried out 
during the intervals of other duties at the University of Upsala. Prof. 
Cleve, he was glad to say, would probably be in London during the 
next week to receive the Davy Medal from the Royal Society. He had 
in his new work made a great alteration in classification, having broken 
up that great and unwieldy genus Navicula into a number of others, 
and had also united into one species many varieties which had, without 
sufficient reason, been named as different species — and in doing this he 
had undoubtedly taken a long step in the right direction. He thought 
their best thanks were due to Prof. Cleve for favouring them with a 
copy of the first part of this valuable work, which would no doubt be 
followed by the second part as soon as it was ready for publication. 
Prof. Bell said they had received two slides of South African diatoms 
from Mr. A. W. Cooper, of Natal, accompanied by a letter which he read 
to the meeting. The slides had been sent to Mr. E. Grove for examina- 
tion, who had returned them with the following exhaustive report : — 
Diatomace^e observed in slides from the Umtwalumi River, Natal. 
Nov. 1st, 1894. 
Achnanthes inflata K. One lower valve seen. 
Amphora delphinea Bail. ? Small form, doubtful. 
* A. ovalis K. 
Amphiprora lepidoptera var. prohoscidea Cl. (S. N. D., p. 25). So far 
as I can judge from one or two specimens in a very unfavourable state 
for observation, this is the above variety, which is described by Cleve as 
occurring in B. W. at Cameroons. 
Cocconeis Placentula E. Very small form. 
Cyclotella striata K. Very scarce, a B. W. species. 
* Cymatopleura Solea (Breb.) W. S. 
*Cymbella bengalensis Grun. 
C. sp. ? Resembles C. helvetica K. in outline, but has coarser, more 
radial striae, and broader axial area. I cannot identify it with any of 
Cleve’s species in S. N. D. Perhaps entitled to rank as a new species. 
*C. parva W. S. 
*C. ( Encyonema ) turgida Greg. 
C. ( Encyonema ) ventricosa K. 
*Epithemia gibba K. Very abundant. 
*E. (turgida var.) Westermanii E. This appears to be the form in 
Mr. Cooper's sketch. 
*E. Zebra K. 
Eunotia bidentula W. S. A variety with four elevations. Scarce. 
E. Eruca E. One small valve seen. An Australian species. 
E. monodon , diodon, triodon Ehr. 
*Fragilaria capucina var. acuta Grun. (V. H. S., xlv. 4). 
