198 THE MICROSCOPICAL NEWS. 
few drops of Brown cement into a watch glass, and stir in with a 
camel hair brush a small quantity of the black, this brush will also 
do for the painting of the cell. 
I think it well here to mention that the Brown cement I refer to 
is the one originally introduced by myself. I don’t know how the 
process would work with the Brown varnish of which a recipe is 
found in Practical Microscopy,* or with the preparation of other 
dealers adopting the same title. 
The varnish having been painted in the cell will dry in an hour 
or so, particularly if put in a moderately warm place, and though 
the surface will be very granular, this granulation will not interfere 
with the after result. 
The elytron, or other object, may now be fastened down to the 
cell-button with gum or brown cement, and when dry, the cell 
should be filled with benzole, which will penetrate every crevice 
and nook. Before the benzole has quite evaporated, fill up the 
cell with balsam and benzole until it appears heaped up above the 
top of the cell. 
The slide should now be put on one side, covered with some- 
thing, such as a wine glass or chip box, to keep off the dust until 
the benzole has evaporated, which will leave the balsam nearly 
hard in the cell. It will, however, be found that, with all care, 
some dust will have settled upon the surface of the balsam. This 
can be removed by a camel hair brush, dipped in benzole, and 
drawn across the surface. If this surface is still higher than the 
cell, the slide is now ready for the last process, and only needs a 
cover glass, which should be warmed and pressed upon the surface, 
and held down by a spring clip, until the existing balsam has 
become hard, when it can be cleaned off, and the slide subjected 
to the usual process of ringing. 
NGEES ON MOSSES: 
IUNE. 
ONTINUING in the order of classification, we have six species 
of Grimmia, more or less rare, which have not yet been 
mentioned. 
G. Schultzit, or Schultz’s Grimmia is found on sub-alpine rocks, 
fruiting in April and May. Leaves lanceolate with recurved mar- 
gins, and tapering into a long rough diaphanous point. Capsule 
furrowed on a very short curved seta. Monoicous. 
* Tt answers very well.—Ep. 
