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pool on the right, as one enters from house No. 10, are mem- 
bers of the sedge and grass families, while on the left hand 
side the fringe is made up entirely of grasses, largely of the 
graceful bamboos. Of special interest among the sedges is 
the Egyptian paper-plant (Cyperus Papyrus), from which 
many of the ancients obtained their writing paper. Among 
the grasses by far the most important is the sugar cane 
(Saccharum officinarum); from the lower portions of its 
stalks the juice is extracted by pressure, and from this juice 
sugar is manufactured. Among the plants in the pool are 
many with attractive flowers; conspicuous among these being 
water-lilies (Cas¢alza), of which there are several different 
kinds ; the water hyacinth; the parrot’s-feather, with its deli- 
cate feathery masses of green; the water poppy; the water 
snowflake; the water lettuce, a member of the aroid family ; 
the floating fern; and some odd little plants related to the 
ferns, members of the genus Selvznza. 
Ffouse No. ro. This house is devoted to ferns and their 
relatives from tropical countries. The species from tem- 
perate regions will be found in house No. 12. The collections 
are here arranged in botanical sequence, and thus closely re- 
lated families and genera are brought into juxtaposition, en- 
abling one to make a comparative study of these plants; on 
the north side bench will be found, among others, some of the 
climbing ferns (Lygodium), the cliff brakes, and a large 
group of the maidenhair ferns, embracing many forms, some 
of them of exceeding beauty; on the south side bench will 
be found the brakes (Péerzs) and their relatives, and the 
large group of the genus Se/aginedia, relatives of the ferns. 
On the central bench are many of the polypodies, including a 
group of the golden polypody; many shield ferns; several 
species of the genus Vephrolepzs, to which the Boston fern 
belongs; and a collection of davallias, some of which are 
very decorative. Some fern-relatives, represented by the 
genera Salvinia and Marsilea, will also be found on the 
south bench. 
Hlouse No. rz. Here are placed the tree-ferns and such 
