19, 4 Reinking and Groff: Siamese Seedless Pummelo 397 
Table 4, showing the average daily temperatures during 1919 
was submitted by the Ministry of Lands and Agriculture of 
Siam. It is for Rajburi, which is west of the Nakorn Chaisri 
region. 
TABLE 4.—Average daily temperature for 1919, Rajburi Province, Montoln 
Rajburi, Siam. 
January 24.4 
February 28.5 
March 30.6 
April 32.1 
May 30.9 
June 29.9 
July . 29.4 
August 28.9 
September 27.4 
October 28.8 
November Ziel 
December 26.9 
Mean for ten years 28.7 
From these reports it can readily be seen that the range in 
temperature, for the years indicated, was not great either for 
the region about Bangkok or in Rajburi Province, Montoln 
Rajburi. The lowest temperature in Bangkok was 25.1° C. 
in December, and the highest was 30.7° C. in April. The range 
in Rajburi Province was approximately the same, the lowest 
being 24.4° C. in January, and the highest 32.1° C. in April. 
Since the Nakorn Chaisri pummelo region is located between 
these two stations, it is highly probable that the temperature 
for that locality falls between the figures given for the two 
regions. 
RAINFALL 
Graham reports on the rainfall as follows: ° 
The rainfall of Siam varies a good deal in the different parts of the 
country. In Southern Siam and on the Chantaburi coast the average is 
not far short of 100 inches for the year; in Northern Siam it is about 60 
inches, and in the neighbourhood of Bangkok about 50 inches. Until a 
few years ago the government collected no rainfall statistics but records 
have long been kept at the consulates, and by business firms and private 
°Graham, W. A., Siam. A Handbook of Practical Commercial and Po- 
litical Information. London (1912) 33-384. 
