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specimens of ginseng, both American and Korean. From 
the Burbank Gardens we have received a set of living culti- 
vated spineless forms of Opuntia, now growing in conser- 
vatory range no. I. 
Most of the specimens have been placed in jars, but many 
remain to be installed in the cases, the label printing not 
having been completed. A number of descriptive labels 
for the more important articles are ready for printing. 
The completion of new cases has afforded a much needed 
opportunity for improving the display features of the 
Museum. 
Respectfully submitted, 
H. H. Russy, 
Honorary Curator of the Economic Collections. 
REPORT OF THE DIRECTOR OF THE LABORATORIES 
Dr. N. L. Brirron, Drrecror-1n-CHIEF. 
Sir: I have the honor to submit the following report for 
the year 1913. 
The Laboratories 
The general arrangement of the laboratories has remained 
as in the previous year. Six one-twelfth oil immersion 
objectives, four Huyghenian oculars and one Stufen microm- 
eter ocular were purchased for use on microscopes already 
supplied. At the time these objectives were fitted, all the 
microscopes belonging to the Garden were overhauled and 
cleaned, without charge, by a mechanic from the firm of E. 
Leitz. An inoculating and transfer chamber especially 
needed in certain student investigations is now being made. 
Experimental Garden and Greenhouse 
The experimental garden was enlarged early in the year 
according to your direction and an area in the propagating 
garden was utilized for the growing of Hibiscus and Carex. 
The facilities afforded by the experimental garden and green- 
house have been utilized fully throughout the year in the 
