The regulations of a pension fund do not fix the age at which an employee will retire from employment unless, expressly or impliedly, the employer and the employee agree that this should be so. Mere membership of a pension fund, without other evidence tending to show that the parties agreed to import the retirement age as fixed by the pension scheme into the contract of employment, is not an adequate basis for holding that the age of retirement as fixed by the pension fund is the same as the age of retirement from employment. Retirement from a pension fund is not synonymous with retirement from employment, and the two retirements can lawfully occur on different dates. One may attain retirement age for pension purposes while still in employment. Where an employer intends to apply the retirement age fixed by a pension fund for the purposes of retiring employees from employment, it must import this age, with the consent of the employees, into the conditions of service.