164 



_ Three tables below give the avera<?e yields iu grammes of 

 Alncan yams, durmo- the four seasons over which they have been 

 m cultivation. It appears from them that quite as large yields may 

 be got from the White and the Yellow Guinea yams, or even largeV 

 than from the Greater Yam of Asia ; for the average yields of the 

 Greater Yam as recorded on p. 130 of the last issue of the Bulletin 

 were m 1916, 3'230 grammes; in 1917, 2267 grammes: and in 1918' 

 1712 grammes. 



There are great differences in palatability between the races 

 of the White Guinea yam, but none have been found yet between 

 those of the YeHow Guinea yam. The latter is good to eat. and 

 a large yielder. The extreme length of its period of growth is 

 against it; but the yield and quality have ensured it a home in 

 the West Indies, where it is cultivated as upon the Guinea coast ol 

 Africa. 



Average Yields in Grammes of Gold Coast Eaces of the 

 White or Eight Months Guinea Yam. 



