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a gift of some 20,000 tulip-bulbs from the General Bulb 
Growers Society at Haarlem should form a highly attrac- 
tive feature in the horticultural gardens next spring. Ex- 
tensive additions were made to the orchid collection in 
conservatory range 2, and the collections in the central 
display greenhouse have developed luxuriantly. In con- 
servatory range I, the palm collection has been much 
improved by rearrangement and the cactus collection has 
been greatly increased. 
Public instruction through Saturday and Sunday after- 
noon lectures in the museum building and in the central 
display greenhouse attracted interested audiences and the 
docentry system has been increasingly appreciated. In- 
struction in gardening was continued and advanced stu- 
dents and visiting investigators in botany and related sub- 
jects have made good use of the collections and library. 
A very large amount of information about plants, their 
cultivation and their products, has been given out to 
visitors and in reply to letters. The labelling of all collec- 
tions has been continued. 
Exploration and collecting were carried out in Florida, 
Cuba and Trinidad, yielding important accessions es 
living plants, museum and herbarium specimens. Much 
work was accomplished in rearranging museum collections 
and in adding specimens held in storage to the exhibition 
cases. 
About 14,782 species and varieties of plants have been 
grown during the year, of these about 5,332 out of doors 
and about 9,450 in the greenhouses. Many of these were 
represented by a large number of individual plants, many 
by one or few. The library now contains about 29,950 
volumes, an increase during the year of 270 volumes. It 
has proved impossible under existing conditions to get 
bookbinding done at all rapidly and we have a consider- 
able accumulation of unbound volumes. Additions to 
museum and herbarium collections aggregate some 16,569 
specimens. 
