341] B. EH. Invingston 143 
other lines of human activity. Both these kinds of effort pro- 
gress side by side in the life of every individual and of every 
institution ; each day is partly devoted to actual accomplish- 
ment and partly to preparing for future accomplishments, and 
the two sorts of activity cannot be clearly separated. Hspe- 
cially is this true when it is appreciated that the accomplish- 
ment of one worker becomes preparation for the future activi- 
ties of others, as well as of the same worker. These two as- 
pects of our work may nevertheless be considered separately. 
Educational and Preparatory—Considering the period 
from October, 1909, to June, 1917, 388 persons, including the 
two members of the staff of the department, have made use 
of the laboratory of plant physiology. The periods of use 
were: One year-for 24 persons, two years for 7 persons, three 
years for 5 persons, four years for 1 person, and eight years 
for 1 person. Thus, the laboratory has furnished facilities 
for mental development, roughly equivalent to those for 65 
persons for a single year, or for an average of 8 persons per 
year. Ten of the 65 academic years considered are those of 
the professor (8) and instructor (2). 
Of the 38 individuals who have used the laboratory, four 
have worked here after the attainment of the doctor’s degree 
elsewhere (two of these are on the staff), four have attained 
the Ph.D. degree from this university, with Plant Physi- 
ology as principal subject, and five others plan to come up 
for the degree in June, 1917, with this as their principal sub- 
ject. Plant Physiology has been selected as a subordinate 
subject (in the requirement for the Ph. D. degree) by 15 per- 
sons. 
Of the four persons who have received the doctor’s degree 
from this university, with their main work in this laboratory, 
one is now employed in the U. 8. Department of Agricul- 
ture, two in state agricultural experiment stations, and one 
is on the staff of the University of the Philippines. Thus, 
three of these have entered applied research and one is de- 
voting a portion of his time to teaching. 
