8 Lister.— Notes on the Plasmodium of 
drawn on to the Stereum in the box, and all that remained of 
the section on the glass side was a slimy deposit in which 
were scattered a few broken hyphae which I concluded had 
belonged to the tough outer bark. 
On October 3, I experimented with a section of the gills 
and pileus of Agaricus rubescens. On the plasmodium 
reaching the section, the hyaloplasm became in some way 
affected, and appeared to absorb water, for it rapidly 
penetrated among the hyphae unaccompanied by granules 
and stained the section throughout gamboge-yellow. This 
influence on the hyaloplasm seemed to destroy its protecting 
power, and at the point of contact the granular plasmodium 
gushed out from the interior in the form of multitudes of 
globular bodies measuring 15 ju, to 25 ju, in diameter, each 
enclosed by a thin covering of hyaloplasm. Some of these 
floated into the surrounding water showing amoeboid move- 
ments, and were afterwards reabsorbed into the general mass, 
but many lost their vitality and fell to pieces, mixing with 
the grey slime of dead plasmodium. It was a considerable 
time before the main wave of plasmodium had covered the 
section, which could be detected lying beneath it for some 
hours without much apparent change ; next morning, however, 
on the plasmodium having retreated, only a denser mucilage 
remained covering the spot where the section had been 
placed. 
This experiment was repeated with another section from 
the same specimen of A. rubescens ; this was also stained 
yellow, but no breaking up of the plasmodium followed. I 
have, however, seen the same clusters of balls when a large 
supply of swollen starch was submitted to plasmodium. 
Some days after I again tried with A . rubescens , but not 
the same specimen. The section was considerably thicker 
than in the former case, and, as before, the progress of 
consumption was slow ; here, however, there was no yellow 
staining and no breaking up of the plasmodium, but it was 
not altogether a favourable diet, for on the following morning 
a heavy deposit of dead plasmodium was left upon the glass, 
