On 7th June 1951 the above-named William Fox died and on 31st October in the same year probate of his will was granted by the Supreme Court of Queensland to the executors therein named. The deceased died owing a number of debts and nearly three years later, on 3rd July 1953, the executors, pursuant to s. 155 of the Bankruptcy Act 1924-1950, presented to the Court of Bankruptcy for the District of Southern Queensland a petition "praying for an order for the administration in bankruptcy of the deceased debtor's estate". On the same day such an order was made and, pursuant to sub-s. (5) of that section, the property of the debtor vested in the above-named appellant, the official receiver for the above-named bankruptcy district, as trustee thereof. Thereafter, on 4th August 1953, the respondent issued notices of amended assessments purporting to assess the "Official Receiver in Bankruptcy" as "Trustee in Estate of William Fox, dec'd." for income tax, social services contribution and additional tax for the years ended 30th June 1946, 1947, 1949 and 1950. The amounts for which the appellant was assessed for these years were respectively £8,494 5s. 0d., £607 2s. 0d., £2,743 8s. 0d. and £20,445 11s. 0d. On the same day an original assessment in respect of the income of the deceased from 1st July 1950 up to the date of his death was also issued. This assessment was for the sum of £21,170 5s. 0d. The total of these assessments was £53,460 11s. 0d. and to the extent of this sum the respondent claims a first charge on all the assets which, by virtue of the order above referred to, vested in the hands of the official receiver. Alternatively, it is claimed on behalf of the respondent that he is entitled to prove against the estate for this amount in priority to all unsecured creditors except those claiming in respect of debts to which priority is given by pars. (a), (d) and (e) of sub-s. (1) of s. 84 of the Bankruptcy Act. The claims of the respondent were rejected by the appellant who admitted the respondent's proof "as an ordinary unsecured claim for the amount of £53,460 11s. 0d."