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have doubtless had some effect in preventing indiscriminate 
tramping through the woods, and, as far as our available 
force of guards has permitted, visitors have been instructed to 
keep on the paths. The difficulty of the situation lies in the 
fact that altogether too many trails have been worn in various 
parts of the woodland, and in the fact that no reasonable 
number of guards can possibly control forty or fifty acres of 
woodland when crowded with people on a Sunday in summer. 
It is now proposed, as an experiment, to fence off the ends of 
many of these unnecessary trails. After such trails have 
grown up again the fencing may be removed. Practically 
all the chestnut trees within the hemlock grove have been 
kiled by the chestnut fungus and many of these trees were cut 
out during the late winter of last year, but some still remain, 
and it is proposed to take these down this winter, in accord- 
ance with the agreement between the Garden and the Park 
Department, which requires that the cutting out of any trees 
within the grove shall be under the observation of a Park 
Department official detailed for this duty. 
Museums 
A great many specimens have been added to the public 
museums during the year, principally by interpolation, in 
order to more completely illustrate the families of plants and 
the groups of plant products. This has necessitated the rear- 
rangement of several cases in the economic museum. All 
specimens have been carefully examined from time to time 
in order to detect any deterioration from insect depredations, 
but no serious difficulty has been encountered, as all speci- 
mens have been thoroughly poisoned before being put in 
place. The museum of fossil plants, on the basement floor, 
was greatly enlarged by the filling of six new floor cases, and 
the illustration of plant remains thus expanded is now one of 
the most complete in existence. 
The Scientific Directors have approved the construction of 
certain models of flowers and fruits for use to further illustrate 
the features of families of plants in the systematic museum. 
