Providence, P.. T,, 
Oct. IP, 1907, 
Dear Collins; 
t have been out to Spring Preen, in the town of 
Warwick, this afternoon. nimong the things obtained was a 
Spirogyra which, upon first glance with the low power of the 
microscope, loobed as if it had Ecne of the chroroatophores on 
the outside of the filament. Upon closer inspection however 
T saw there was something on the outside of the filament winch 
suggested a green parasite with a long transparent hair extending 
out from each cell. T am sending you a small vial of it, Ts 
it anything in your line? T have a fair quantity of it and 
could probably get more if T bnew soon that it was desired, 
vou will also probably find a little Zvgnema and some Diatom^s 
in the vial. 
Very truly, 
