PROCEEDINGS OF SOCIETIES. 139 
and angle, and in the gatherings in which it occurred the 
quadrangular variety was rather the more numerous; both 
are rare, however. I do not think there can be any doubt 
as to the form of which the end view is figured (fig. 16), 
being the Staurastrum monticulosum (Bréb.), yet as the draw- 
ing after M. de Brébisson in Ralfs appeared to me as not 
quite characteristic, especially as to the end view, at least so 
far as my plant was concerned, having the opportunity, I have 
thought it might be worth while to introduce a sketch. The 
diameter of end view is 1-700th of an inch; extreme length 
of front view, 1-500th of an inch. | 
AS gracile (Ralfs), rare. 
4 tetracerum (K7/z.), rare. 
- eyrtocerum (Bréb.), rare. 
~s asperum (Bréb.), rare. 
3 enorme (fa//s), very rare. 
$s spongiosum (Bré6.), very rare. 
rs aculeatum (Meneghinc), rare. 
i spinosum (87ré6.), common. 
oe vestitum (Ra/fs), rare. 
Tetmemorus levis (Av¢z.), not rare. 
Penium interruptum (Bréé.), rare. 
»  Berginii (mzhz), very rare. 
{Sparingly, ina dyke above the Devil’s Glen, between the Water- 
fall and the high road ; also in a pond on the “ Piperstown road,” 
rather more than a mile beyond Ballinascorney chapel. | 
Closterium Ehrenbergii (Mezegh.), not uncommon. 
3 moniliferum (//7.), not uncommon. 
a Jenneri (Ral/s), rare. 
a intermedium (Aa/fs), rare. 
A angustatum (A7zé¢z.), not uncommon. 
" lineatum (Zhr.), not uncommon. 
3 setaceum (Hhr.), not rare. 
= acutum (Bréb.), not rare. 
a juncidum 6 (Ralfs), rare, 
Spirotenia obscura (Ra/fs), rare. 
Pediastrum pertusum (A7z.), rare. 
Scenedesmus acutus (Meyer), not rare. 
ROYAL SOCIETY. 
June 18th, 1857. 
On the Early Stages of Inflammation. 
By Josern Lister, Esq., F.R.C.S. 
(Adbstract.) 
In this communication the author gives an account of an 
investigation with which he has been recently occupied, into 
the process of inflammation in the Frog’s foot. The paper 
is divided into four sections, with an introduction and con- 
clusion. 
