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elongated, and a single turn of a spiral is seen as in the 
larger figures shown at the bottom of the plate ; the dotted lines 
indicate the whirling motion of the spermatozoids. For com- 
parison with this, various tailed and tailless monads are engraved 
at d, which figures may be compared with the spermatozoids to 
the same scale on the upper part of the plate. These latter bodies 
have been long known, and Mr. Berkeley, in the “Micrographic 
Dictionary ” (last edition), p. 20, says: “The bodies called 
cystidia or pollinaria are globular or oval cells, found associated 
with the basidia, containing granular matter, exhibiting mole- 
cular motion when discharged.” In common with many other 
botanists, I am inclined to think this movement to be other 
than molecular, as the eddy clearly seen round the revolving 
bodies indicates the presence of cilia. It is impossible to 
believe that life can spring from no-life , the mere molecular 
movement of lifeless particles must be of a totally different 
nature from the life-movements of spermatozoids and infu- 
soria. The revolving bodies might be referred to Micrococcus, 
one of the Sphaerobacteria, but it must be remembered that 
they are the differentiated contents of the cystidia. It may 
be answered that if the mycelial threads of fungi will break 
up into true Bacteria, why may not the cell contents re- 
appear as one of the Sphaerobacteria ? The question then 
arises, What is the nature of the obscure bodies referred to 
Bacteria ? Are Dr. Eidam’s spermatia no other than Bacteria ? 
they are sufficiently like Bacteria. Are certain so-called Bac- 
teria and antherozoids of some cryptogams one and the same ? 
When once produced they are both very persistent, and they 
are both produced under somewhat similar conditions. The 
spermatozoids of Agarics only appear as the fungus has just 
passed maturity, and as decomposition is setting in ; and as soon 
as the spermatozoids are set free, then the material from which 
they spring has vanished. 
It is just worthy of note that certain spermatozoids and 
bacteria resemble each other in size and external form, that 
they are alike in being furnished with flagella or cilia, that 
they are produced at a time when decomposition is just setting- 
in, and that they are seen in semi-milky fluids. The spherical 
bodies, when they become attached to the spores, or even 
threads, rupture at one end and discharge a fine thread, as at e, 
where they are shown germinating in a free state, which is no 
uncommon occurrence. Vibriones are shown at f; these bodies, 
with the bacteria, shown at a and h, are well known to all 
microscopists, and it has appeared to me that they are mere 
differentiated states of the old cells of the fungus which have 
broken up and (as a collection of cells) totally disappeared. 
The dotted lines indicate the movements of the bodies, whether 
straight, zigzag, or revolving like a wheel. 
