CONTENTS Xlll 



CHAPTER VII. THE EFFECTS OF A LOW PROTEIN DIETARY IN 



THE TROPICS Continued pAQKs 



Brahmin proverb exemplifying the effects of diets deficient in protein 155 

 Facts bearing on the conditions that obtain with the Bengali rice 



dietary - - 155 



1. The evidence afforded by a study of the urine and blood - - 156 



Tables contrasting the composition of the urine and blood of 



Europeans and Bengalis - - 156 



Differences examined and significance discussed - 157 



Deductions drawn and conclusions arrived at - - 159 



2. The evidence afforded by contrasting the physical development of 



Bengali and Eurasian students living under identical con- 

 ditions, but on different dietaries - - - 160 

 The dietaries of the two classes of students - - 161 

 Results : Bengali students - - 162 

 Eurasian students - 162 

 Their significance in estimating the merits or demerits 

 of diets low and relatively high in protein re- 

 spectively - - 163 



3. The evidence afforded by a study of the physique, endurance, 



capabilities of work, and expectation of life in the Bengali - 164 



(a) Body weight of Bengali shows a low average - - 164 



(6) Height: comparatively tall - - 165 



(c) Chest girth well below European average - - 165 



(d) Physical endurance very deficient - - 165 



(e) Capabilities of work - - 166 

 (/) Expectation of life at different ages - 167 



Mortality rates favourable to Mohammedans as compared 



with Hindus - - 167 



Evidence collected from insurance companies - - 168 



An actuary's opinion - - 168 



Dr. Adrian Caddy's valuable data - 168 



Dr. Caddy's results summarized - - 169 



Conclusions arrived at - - 171 



4. The evidence afforded by the resisting power to disease and in- 



fection - 171 

 No evidence that an ordinary diet throws any strain on the 



kidneys - 172 

 Strong evidence that diets deficient in protein are accompanied 



by malnutrition of renal epithelium - - 172 

 Incidence of renal disease in the Bengali 



Major Rogers's analysis of post-mortem records - 173 



Resisting power of low protein feeders to acute infections very low 175 



Granular kidney and atheroma ----- 177 



CHAPTER VIII. THE EFFECTS OF THE LEVEL OF PROTEIN 

 METABOLISM ON THE PHYSIQUE AND GENERAL 

 EFFICIENCY OF DIFFERENT TROPICAL TRIBES AND 

 RACES - - 179210 



Other factors besides diet as the cause of defective development - 179 



Chittenden's explanation not valid - 179 



Dr. Kellogg's criticisms - - 180 



The causes put forward by Kellogg eliminated - - 180 

 Peoples of Behar, Lower Bengal, Orissa, and Eastern Bengal 



contrasted - - 181 

 The true facts regarding the level of nutrition and the fighting 



instinct 182 

 The evidence obtained from an examination of the dietaries of the 



hill tribes of Bengal and their physical development - 184 

 The level of protein metabolism and the conclusion arrived at 



as to its effects ...-,, J.87 



