149 
already been transplanted to the herbaceous grounds, and m: 
more to the trial grounds in the nursery. In addition to rae 
will a 
purpose of exchange with other institutions, so that much de- 
sirable material will be thus indirectly secured. 
In addition to the important use performed by these houses 
briefly outlined above, enone equally important function is also 
Fic. 13. Looking south, over nursery site. 
feature cannot be too much dwelt upon. One compartment of 
one of the houses is devoted entirely to this purpose and is under 
uc 
interesting work is here carried on, and most valuable results at- 
tained. A portion of the adjoining nurseries is also given up to 
