25 
houses with gravel and soil, the hanging of shades, and the 
stippling of the glass where needed, are now going forward. 
The large amount of additional space for plants, provided by 
the new houses, necessitates and. permits almost the entire re- 
arrangement of the collections already installed in the old houses, 
with the exception of the palms, sago-palms, and bamboos, 
which will remain in the central house No.1. House No. 9 
will be occupied almost entirely by tree-ferns and other tropical 
ferns; house No. 10 will be operated as a temperate house. 
House No. 8 contains two compartments, one of which will be 
given over principally to the smaller tropical ferns; the other 
compartment contains the tank for tropical water plants, around 
the sides of which will be placed tropical grasses and sedges. 
House No. 6 will be operated as a succulent house, to contain 
the larger cacti, century-plant, aloes, and other fleshy plants, 
the smaller kinds of this category remaining where they are, with 
