(167 ) 
hill is the group of plants showing leaf-positions. Beyond 
and a little to the right are plants which are at home in desert 
regions, and the various means of accommodating themselves 
to their natural surroundings are shown. Further on to the 
right is the bed devoted to fruit-forms; and to the left of 
this, one showing various forms of seed-dispersal ; those with 
the surface of the fruits covered with some sticky substance 
or curved appendages or hooked hairs or spines require the 
intervention of some animal for their distribution, while those 
with wings or with hairs attached to the seed are spread 
through the agency of the wind. To the right of the above 
are plants representing a species and a variety, and to the 
left of this is a bed containing plants showing species and 
hybrids. 
(c) Economic GARDEN 
The collections illustrating plants producing substances 
directly useful to man in the arts, sciences and industries are 
now being installed at the northern end of the long glade 
containing the herbaceous collections just described. They 
illustrate food-plants, fiber-plants, drug-plants, fodder-plants, 
and a variety of other economic species. 
(d) ViriceETuM 
The area devoted to the plantation of vines is at the easterly 
side of the economic garden. Hardy vines, whether woody 
or herbaceous, belong here, and a rough arbor has been con- 
structed for them to climb on. This collection is now being 
developed, and only a few of the species which it is in- 
tended eventually to grow there are as yet in place. The 
families will be referred to below in the order of their 
sequence. ‘The arrangement begins at the southerly end of 
the arbor, on the left hand side, with the smilax family, to 
which belong the green-briers or cat-briers. The yam family 
is placed immediately opposite to the right, followed by the 
mulberry family on the same side. The birthwort family, 
with the dutchman’s-pipe as a representative, follows the 
smilax family on the left; and opposite to this is placed the 
