ON THE CLASSIFICATION OF CULTIVATED RICE. 17 
From the surface of the water the stem stood nearly upright about 
one meter high, including the ear. Thus the whole length of the plant 
measured generally from 2.5 to 3 meters (Figs. 12, 18 and 14). Having 
the natural character of growing higher with the rise of the water level, 
some cultivated rices become quite as tall as the wild ones. For example 
I may mention a rice cultivated in the district near Ayuthia, the ancient 
capital of Siam. In this district where water may often cover the land 
more than one meter deep, farmers cultivate varieties of rice which can 
grow safely out of the deep water and attain a height of two and half 
meters or more. A bunch of a giant rice, cultivated at the above men- 
tioned district is shown in Figure 15. The specimen was sent by Prof. 
Dr. K. Toyama to our college when he was staying in Siam as an expert 
to the Government of that country. Sir GEORGE Warr says, that in 
India some of the Boro (or swamp rices) grow to a length of ten to fifteen 
feet, the harvest being made from boats, and this crop is of much value 
to the localities where produced, since the rice comes into season in May 
and June and thus lowers the price of the stocks. 
Such extraordinarily tall rices are of special use in fields which may 
often be covered with deep water in consequence of river inundations or 
continuous heavy rain, and should better be grouped out of the ordinary 
ones. The writer calls those which are taller than two meters the 
“Giant-rice.” 
(4) Salt rice. 
In some localities near the sea, rice fields may often become inundated 
or be artificially flooded with water mixed with a considerable quantity of 
sea water. In 1908, the writer got a small quantity of seed of so-called 
salt rice grown in Bombay Presidency, through the courtesy of Prof. 
GammieE of Poona, for the purpose of comparing its Tesisting power against 
the injurious action of sea-water, with that of three common rices of Japan. 
These rices were grown in a porcelain pot filled with the common soil 
of our college and were irrigated with an artificial sea water which con- 
tained the essential substances of the natural one in their average per- 
