Badhamia utricularis and Brefeldia maxima . 7 
I now proceed to relate observations on the absorption of 
various fungi. 
On October 10, 1887, I placed a thin section of the pileus 
and gills of Agaricus campestris , measuring 7x4 mm., in 
front of an advancing wave of plasmodium, which at once 
concentrated in a turgid mass upon the agaric, and in the 
course of an hour had entirely enveloped it. On the retreat 
of the plasmodium after some hours, not a trace of the 
mushroom remained. I have repeated this again and again 
with always the same result ; a sluggish condition of the 
plasmodium is invariably revived and rapid streaming in the 
surrounding veins towards the object is set up when this 
agaric is offered to it. 
Several experiments were made with slices of the pileus 
of Boletus fiavus , which were even more greedily devoured 
than the mushroom. 
On October 11, I placed a section of the pileus and gills of 
Agaricus melleus before a wave of plasmodium. The action 
was less rapid than in the other cases, but in two hours the 
section was densely enveloped, and next morning, when the 
plasmodium had withdrawn, nothing remained on the glass 
but a heavy grey deposit of granular and slimy debris. 
As the tissue of the pilei of the fungi hitherto used is 
composed of delicate hyphae, I next tried an experiment 
with harder material. On October 12, I cut a section of 
the stem of Agaricus melleus from a specimen which was 
tough and mature, the buff-coloured outer coat being 
especially firm, and the hyphae strong. I placed the sec- 
tion in front of a thin film of plasmodium (Fig. 1). 
Almost immediately on its touching the first threads of the 
agaric a concentration took place as in former instances. 
Figs. 2, 3, 4 show the manner in which the turgid 
border advanced. In less than two hours the whole piece 
was overspread, but in this case the absorption was 
not so rapid as it was with the softer tissue, and the 
section could be seen beneath the plasmodium for several 
hours. On the following morning the plasmodium had with- 
