FLORIDA STATE HORTICULTURAL SOCIETY 
173 
strongly as these if we could have those 
analyses made, and we are hoping to get 
those analyses just as quickly as condi¬ 
tions will permit. 
We must consider ourselves fortunate 
to have these figures. Do you know 
that nowhere else in the world could we 
get those figures? There are some other 
computations we could make, but for the 
want of time we could not get them out. 
We hope to get them out so that you may 
have them next vear. 
You have had a general view of the 
question, but the figures and those charts 
will need days of study. Then, after 
that, go back and study them again, and 
after you study them six months, there 
is still material for study. It is a big 
study. 
This is not a superficial work, but a 
difficult work which has required weeks 
and months. We are starting out to 
prove that phosphoric acid will make a 
sweet orange, but we are allowing the 
figures to lead us where they please. We 
may have some opinion in regard to it, 
but after we see the figures we may 
change our opinions entirely. 
You have seen here in just a few min¬ 
utes, the work of Professor Collison for 
over six months, and I fear that once in 
a while he was not as good a Presbyte¬ 
rian as he might be, and worked on Sun¬ 
day. 
Mr. Hume: Time and time again he 
was in the laboratory twelve hours a day. 
Mr. Cox: Is it of importance to know 
what effect a high degree of ammonia has 
on the tree? 
Mr. Collison: I consider that of as 
much importance as phosphoric acid, or 
potash, but unfortunately from the sam¬ 
ples I was not able to receive enough 
having high ammonia and low ammonia 
to give us satisfactory results. With the 
samples of seedling oranges upon which 
we based our calculations, the grove had 
been fertilized with three or four differ¬ 
ent sources of ammonia, and nearly every 
sample received /one or two of these 
sources at least, so that we could not se¬ 
lect one sample as being fertilized with 
sulphate of ammonia or nitrate of soda, 
or we could not select those having high 
or low ammonia, because they received 
practically the same proportion. With 
phosphoric acid and potash it was differ¬ 
ent. 
Professor Rolfs: I want to give away 
one of Professor Collison’s secrets. He 
now hopes to get the co-operation of the 
citrus growers to the extent of getting 
the samples of soils on which these cit¬ 
rus fruits are grown, to see whether or 
not the soils have anything in them. 
Mr. Hume: Keep him the rest of 
his life on it. Get to the bottom of it. 
Professor Rolfs: He might be doing 
work less profitable. 
Mr.-: Would it be in order to 
move a vote of thanks to our speaker 
of the evening? I move that this Socie¬ 
ty give an unanimous vote of thanks to 
Professor Waugh for his most interesting 
and instructive address of this evening. 
Mr. Skinner: While we certainly en¬ 
joyed Professor Waugh’s lecture, I think 
the vote of thanks should include also 
Professor Collison’s address, which I 
think is remarkable. I amend the mo¬ 
tion to include Professor Collison, and 
second it. 
(Motion carried.) 
