XX LIST OF ILLUSTRATIONS 



MAPS AND CHARTS 



No. PAGE 



I. Chart illustrating the Spread of Enteric Fever by Infected 



Milk ..... . To face page i%o 



II. Chart illustrating the Spread of Scarlet Fever by Infected 



Milk ......•» 382 



III, Map illustrating Sources of Milk Supply of a London Dis- 



trict ........ 462 



IV. Chart illustrating Relationship of Contractor to Milk Supply „ 466 



