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store room and equipped with temporary shelving which has, 
up to this time, been used in the chemical laboratory. In this 
room are stored materials in quantity and large pieces of 
apparatus which are not in immediate use. This arrange- 
ment has made it possible to place several student desks in 
the chemical laboratory which are designed to be used by 
students carrying on work in physiological chemistry, culture 
work with the fungi, and those phases of cytological work 
which necessitate the use of the paraffine bath or other pieces 
of apparatus requiring a constant flame. 
Numerous small pieces of apparatus and reagents have 
been added to the laboratory equipment during the year, but 
no large or expensive pieces have been purchased. The ad- 
dition of materials of this kind, even in small quantities, em- 
phasizes the need of more cases for the storage of such 
material as well as of more room for the installment of cases. 
According to your request, beginning with November, a 
programme has been arranged to be given before the confer- 
ence of the scientific staff and students of the Garden on the 
first Wednesday of each month, the minutes of the meetings 
recorded, and a synopsis of each paper prepared for publica- 
tion in the JouRNAL of the Garden. 
Meteorological records have been kept during the entire 
year and in addition to these evaporimeter records have been 
kept during that part of the season favorable for conducting 
this kind of experimental work. The evaporimeter records 
were kept in one station located near the propagating house 
and continued until danger of frost made it necessary to take 
up the instruments for the winter. This work has been 
carried on in codperation with the Desert Botanical Labora- 
tory of Tucson, Arizona, and its object fully explained in 
previous reports. The results of these experiments have been 
published in full by the Carnegie Institution. 
The minimum temperature recorded for the year was 0.5° on 
February 5, and the maximum temperature 99.5" on July 19 
and 20. The mean temperature for the year was 50°. The 
autumn was unusually warm and dry, the precipitation re- 
