Deterioration of Maize Infected with Diplodia zeae. 
239 
7. For practical purposes the acidity determinations appear the most 
■useful, though with the limitations stated the reaction of Ori could be 
developed into a delicate test. 
The Botanical Laboratories of the 
Union of South Africa, 
P.O. Box 1294, 
Pretoria. 
June 23, 1914. 
Note. — Since writing this article a letter has been received from the 
principal Medical Officer, Basutoland, who writes : — 
" In reply to your (the Agricultural Officer, Maseru) inquiry as to the 
prevalence of Pellagra in Basutoland, I beg to inform you that except 
in the Leribe District, no cases of that disease have been notified. The 
supposed cases of Pellagra above referred to were attributable to the 
consumption of damaged or unripe grain. 
" Scurvy is common at times, and its prevalence is, as above, 
attributable to the same cause." 
