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therefore installed. Later studies of the path system of the 
northern end of this tract west of the driveway made necessary 
some rearrangement of the families there. This affected 
the dogwood, holly, staff-tree, bladder-nut, and soapberry 
families, but the changes were effected with a minimum of 
transplanting. There have been 660 show labels placed in 
position here during the year, thus providing for considerably 
over half of the verified material. 
Salicetum. There has been no change made here. The 
collections contain 45 species and varieties, represented by 
I25 specimens. 
Deciduous Arboretum. This collection embraces 251 spe- 
cies and varieties, including those still in the nurseries and 
native to the tract, an increase of 2 species. In the arboretum 
alone there are at present 381 specimens, an increase of 18 
over the number of last year. 
Pinetum. Considerable planting has been done here dur- 
ing the year. Including those still at the nurseries, as yet 
too small for transferral, there are now 260 species and 
varieties embraced in this collection. Of these 179 are in 
the pinetum itself, represented by 737 specimens, a gain of 
20 species and 117 specimens over the previous year. Much 
of the material incorporated was from the rich collections of 
Mr. Lowell M. Palmer, whose continued generosity has 
greatly increased the value of this collection. With the ex- 
ception of a few plants, the identifications of which are still 
uncertain, all the specimens in the pinetum have been sup- 
plied with show labels, of which 674 have been placed in 
position during the year. 
The region to the westward of the morphological garden 
being more protected from the cold winds, it was decided to 
move there the collection of yews, located for some time on 
the more exposed ridge to the west of the herbaceous grounds. 
This was completed during the spring. 
Viticetum. Active work was again commenced in this 
tract. To the species here last year 13 have been added, 
making the number now 50 species, represented by 96 speci- 
