correction of error - whether land should be valued at the date of possession or at the date of alleged change of intention - s 70A of the Inland Revenue Ordinance
whether income should be subject to profits tax and not salaries tax - personal assessment - deduction of trading loss against income subject to salaries tax
deduction of expenses - tuition fees and a subscription and examination fee paid to a professional association - whether deductible for salaries tax purposes
taxpayer absent from work and provided a replacement to perform his duties - whether payment made by taxpayer to replacement was deductible against assessable income of taxpayer