717 
and from each coil a tube projecting, afterward branching and 
the branches coiling and twisting toward theends. The chlorophyll 
bands extended into these tubes, but with a feeble, unhealthy 
look and a loose coil which intimated rapid disintegration. An- 
other perhaps equally common method of branching was from 
each end of the cell, or from the free ends of two cells still hold- 
ing fast together. Here the appearance was still more root-like. 
The extending tube was never more than half the diameter of 
_ the cell and very often, forking several times it formed a little 
snarl of branches. This growing from the end of the cell some- 
times happened before the cells of the filament separated, so that 
from the end of one cell projected a tube into the next, running 
perhaps half its length. 
Cells in this condition in other ways never appeared perfectly 
healthy. Frequently the spirals were intact and the nucleus 
still in position, but generally the chlorophyll coils had straight- 
ened out, broken in places and appeared contracting into spheri- 
cal bodies. This breaking up of the chlorophyll bands, according 
to the general method of development of the monads, we would 
suppose corresponds with the so-called amoeboid stage of the 
parasite when it gorges itself with the chlorophyll of the cell. 
Singularly enough nothing whatever could be detected of the 
monad itself during the formation of unnumbered green spheri- 
cal bodies, filling the cells more or less closely. The only appar- 
ent cause of the formation of these bodies was the collection of 
the chlorophyll masses about the pyrenoids and the gradual sep- 
aration of these from each other. This is the more strange as the 
spores of the ordinary monad forms which attack the Alge are 
not so small as to render them difficult of detection with the lens 
used, which was a number seven, of Leitz. Whatever the ex- 
planation may be, these bodies were formed inside the cells in 
immense numbers. In nearly all cases they retained their chio- 
tophyll till after escaping from the cell, generally also in a bright, 
healthy condition; seldomer was it found to have turned a dull 
brownish color like the remains of chlorophyll described by Zopf 
as having been ejected by the monad. : 
These bodies generally escaped from the cell at night and 
hat through some break in the cell wall having no relation 
rs 
