46 The Philippine Journal of Science 



facilities. I wish also to acknowledge my obligation for much 

 encouragement and assistance to my colleagues in the Malaya 

 Board, .Drs. S. T. Darling and H. P. Hacker. I am also under 

 great obligations to Dr. A. T. Stanton, of the Institute for Med- 

 ical Research of the Federated Malay States, and to Dr. Malcolm 

 Watson, of Klang. In the work included under Part II Assistant 

 Surgeon A. E. Duraisamy furnished much assistance, especially 

 in taking the histories and recording the clinical notes of the 

 patients. I must further acknowledge the constant and faithful 

 services of my laboratory assistant, Mr. Daniel Ra.iamoney. 



