THE MICROSCOPIC LIFE OF THE RIVER TRENT. 32 
(c) The water in the centre of the river, and a few feet 
below the surface passing the same boathouse, 
(D) From the shallow water under the cliff’ on Mr. Samble’s 
property. 
(£) At Alligator point, a specimen of mud and the pressings 
from weeds growing submerged. 
(F) Scrapings from the moist green surface of stones on 
Drakelow Weir. 
(@) Scrapings from the submerged part of rushes growing in 
the stream below the Weir on the Burton side. 
(=) From rushes growing under the river bank—Stapenhill 
House garden. 
On examination under the microscope—working chiefly with 
powers of 300 and 400 diameters—the following objects were dis- 
_ cerned, and, so far as we were able to do so, classified. 
(c.D.) Movtps.—One or two common varieties in a submerged 
form, including budding spores. Oidium forms may con- 
veniently be represented by Beggiatoa alba, The white 
sewage fungus, the classification of which is a little doubt- 
ful. 
! 
: ae 
(c.D.) Protococcus.— Protococeus pluvialis, and two or three 
larger discoid or spherical forms, coloured red, yellow, or 
green. 
DeEsmqDs. 
(DHE) 1 Closterium lunula (very common.) 
(D.) 2 bs Setaceum, 
(E.F.) 3 Scenedesmus. 
(D.) 4 Pediastrum granulatum. 
(C.D) 5 Volvox globator (fi equent), intermediate forms of 
Same, 
