"SECTION 1. The WAPCO classification and pay plan shall be adjusted to the following salaries of certain positions in the Veterans Memorial Hospital, which are hereby fixed as follows:

"(a) Director, fifteen thousand pesos, per annum;

"(b) Assistant Director, fourteen thousand five hundred pesos per annum;

"(c) Chief of Professional Staff, fourteen thousand Pesos, per annum;

"(d) Medical Specialist III, thirteen thousand five hundred pesos per annum;

"(e) Medical Specialist II, twelve thousand pesos, per annum;

''(f) Hospital Department Head, Chief of Service and Chief of Division  (non-medical), twelve thousand pesos, per annum;

"(o) Medical Specialist I, eleven thousand pesos, per annum;

"(h) Senior Resident Physician and Clinic Supervisor nine thousand pesos, per annum;

"(i) Resident Physician, Clinic Physician and Junior Physician, seven thousand pesos, per annum;

"Those serving on part-time basis shall receive one-half of the corresponding salaries mentioned herein."