WEDNESDAY, JUNE 24.—MORNING SESSION, 
10.30 A.M. 
Sanitation and Hygiene on Tropical Estates. 
Chairman: LIEUTENANT-COLONEL SiR  RonaLtp~ Ross, 
K.C.B., F.R.S., Professor of Tropical Sanitation, 
Liverpool University. 
The Presipenr: Gentlemen—Before we proceed to the 
business of this morning, I should like to tell you that yes- 
terday, after the morning session had closed, we had the 
great gratification of receiving a special message from His 
Majesty the King. The King, as you are aware, is the 
Patron of our Congress, and he has sent us this message :— 
““Tt is with much pleasure that I welcome to London the 
Delegates of the International Congress of Tropical Agricul- 
ture. The importance of their deliberations, and the number 
and variety of the subjects to be discussed, are of especial 
interest to me. I trust that their discussions will contribute 
to the advancement of agriculture in the tropics.’’ 
GrorceE R.I. 
On your behalf, 1 sent this reply to His Majesty's 
message :— 
“The Third International Congress of Tropical Agricul- 
ture has received with great pleasure the gracious message 
from the King, and begs respectfully to thank His Majesty 
for his kind words of appreciation and encouragement of the 
work of the Congress.’’ (Applause.) 
At this morning’s meeting we have an important discussion 
to deal with, and Sir Ronald Ross has kindly undertaken to 
preside. Sir Ronald Ross needs no introduction to an 
audience composed of workers in the tropics, and the Con- 
