19 , 4 
Reinlcing and Groff : Siamese Seedless Pummelo 399 
Table 6. — Number of days on which rain fell, mean for ten years, 
1909-1918, at Bangkok, Siam. 
Days. 
January 1.6 
February 2.7 
March 6.2 
April 5.0 
May 16.5 
June 18.9 
July 22.0 
August 22.8 
September 22.1 
October 18.6 
November 8.0 
December 3.4 
Mean for ten years 147.0 
Table 7. — Mean rainfall on the delta of Chao Phaya River, Nakorn 
Chaisri Province, Samutsakorn, Siam, 1905-6 and 1912-13. 
mm. 
January 3.7 
February 19.7 
March 49.2 
April 31.6 
May 131.3 
June 123.2 
July 105.9 
August 129.9 
September 246.5 
October 229.6 
November 70.6 
December 13.5 
Yearly average 1,154.7 
Table 8. — Mean rainfall on the delta of Chao Phaya River, Nakorn 
Chaisri Province, Supanburi, Siam, 1905-6 and 1912—13. 
mm. 
January 15.5 
February 22.0 
March 19.0 
April 37.3 
May 164.6 
June 77.8 
July 177.3 
August 157.7 
September 294.7 
October 257.2 
November 63.1 
December 0.1 
Yearly average 1,286.3 
