BRISTLE FERN? Ww 
particularly to recommend. No. 1.—A small green- 
_ house, with brick walls, north aspect, corrugated glass, 
and the sun’s rays totally ‘excluded. Arrange upright 
_ strips, about an inch thick, of stone, slate or zinc, 
_ against the bricks: on the strips fasten galvanized 
zine wire-netting: there will be a space between 
the netting and the bricks about an inch deep; fill 
this very carefully with Sphagnum thoroughly satu- 
-Tated with water, and on the face of the Sphagnum 
arrange the caudices of the Bristle Fern, which will 
: be held in their places by the elasticity of the Sphag- 
hum and the pressure of the netting. If the brick 
_ wall be built for the purpose, the taste of the builder 
will suggest many improvements on a plain surface. 
Mr. Allis, of York, has the upright strips made of 
_ Wood, and has been very successful; but I do not like 
_ Wood so well as any material that is not liable to decay, 
_ Tast, or harbour insects. No. 2.—Procure a very large 
earthen pan, glazed within; fill this with water, and 
2 water arrange shells, crystals of quartz, aquatic 
Ranunculi, aquatic moss, Charas, &c., so as to hide the 
then introduce two small gold carp, two crucian 
six small minnows and a dozen water snails: I 
ar in stating numbers, because any attempt 
the water with animals will exhaust its 
of supporting life, and the water is never to be 
Procure a second pan, about half the size 
and totally unglazed; support this on three 
