31 
Che Diicroscopic Life of the River Crent. 
By C, G. Matruews, anp B. L. Osws.u. 
READ BEFORE THE SocigeTY, JANUARY 16th, 1902. 
[ ABstRACT. | 
dy" wish, at the outset of our paper, to disclaim any idea that 
we have attempted to deal at all exhaustively with the living 
organisms which might be discoverable in this part of the river by 
careful and continuous collection of samples of water, weeds, mud, 
ete., and the necessary manipulation of such specimens of the raw 
material. Our object has been, rather, to take what we believe to be 
a fairly representative batch of material from the river, and in it 
identify, so far as we were able, the objects of interest which pre- 
sented themselves when the microscope was applied to small portions. 
We may, therefore, consider that the organisms we did find, and 
which we shall presently detail, are such as might be found by any 
observer without employing elaborate methods of collection or of 
separation. As regards the mode of collection employed by us, a few 
small phials and a piece of string sufliced as apparatus, and no more 
time was bestowed during a pleasant row up the river than anyone 
could easily manage to give under similar circumstances. Specimens 
of water, etc., etc., were taken as follows: 
* (aA) Mud from a point on the right bank of the river about 
30 yards below Mr. Evershed’s boathouse, 
(s) The black mud in the little bay at the above boathouse. 
* The letters by which these places are indicated, correspond with those 
given in the list of organisms found. 
