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Puerto Rico his services were secured, and for the past six 
months he has been steadily at work printing labels for both 
the economic and systematic museums. Mr. Heller’s com- 
bined knowledge of printing and botany made possible much 
larger and more accurate results than could have been other- 
wise obtained. 
Herbarium. 
1. General accesstons.* The year 1899 has witnessed a 
noteworthy increase in our herbarium material, the number 
of specimens received through donations and purchases 
aggregating about 70,000. 
2. Mounting and arranging of spectmens. At the close 
of last year 14,000 sheets of herbarium mounting paper re- 
mained unused, and during the year 67,000 sheets of mounting 
paper were purchased. ‘The mounting of the year, as far as 
the Garden herbarium is concerned, was mainly confined to 
flowering plants and fungi, the number of miscellaneous 
cryptogams being relatively small. For the flowering plants 
and miscellaneous cryptogams 41,000 sheets were used, 
while for the fungi, chiefly those of the Ellis’ collection, 
18,200 sheets were used, making the total number of mounted 
herbarium sheets added to the Garden herbarium, 59,200. 
However, this does not represent the actual number of speci- 
mens added to our herbarium, for in the case of the fungi 
each sheet contains an average of three specimens, therefore 
the number of specimens mounted and arranged in the 
herbarium during the year amounts to about 95,600. 
In addition to this, 8,500 sheets were mounted for the Co- 
lumbia University herbarium now on deposit at the Garden. 
The sheets contain about 20,000 specimens and represent, 
for the most part, mosses and flowering plants. Thus the 
number of mounted sheets added to the herbaria at the 
Garden during the year amounts to about 67,700, while the 
number of specimens make a total of 115,600. Since the 
herbarium of Columbia University has been deposited in the 
new museum building, its congested condition has been re- 
* See also tabulated appendix to this report. 
