By affidavit the appellant placed certain material before the Court of Bankruptcy in support of her allegations that the testator, whose age at the time of making the will is given as eighty-five, was not of full testamentary capacity and was overborne and in support of her assertion that grounds existed for denying protection to the trustee company, if the grant to it of administration c.t.a. were revoked. Section 52 (j) makes it necessary that a debtor served with a bankruptcy notice, if he does not comply with its requirements, should satisfy the Court of Bankruptcy that he has a counter-claim, set-off or cross demand which equals or exceeds the amount of the judgment debt. The debtor clearly must satisfy the Court that there exists in him a counter-claim, set-off or cross demand. "Cross demand" is the word relied upon here. The appellant cannot satisfy the Court that a cross demand exists by showing no more than that she propounds one and states how she suggests that she can make it out. In Re Duncan; Ex parte Modlin [1] Street J. said that the debtor need not satisfy the Court that there are reasonable grounds for believing that he will establish his cross action, but only that he has a bona fide claim which he is fairly entitled to litigate. This perhaps is expressed too favourably to the debtor. In Re A Debtor [2] Roxburgh J. said: "But not every demand will suffice. A demand made in bad faith would not be good enough. The debtor must satisfy the Court that he has a genuine demand. But in my opinion a demand must be more than bona fide: the Court must be satisfied that it has a reasonable probability of success" [3] . Perhaps the standard may be expressed by saying that the debtor must show that he has a prima facie case, even if then and there he does not adduce the admissible evidence which would make out a prima facie case before a court trying the issues that are involved in his counter-claim, set-off or cross demand. What the appellant put before the Bankruptcy Court does not reach this standard but it is not necessary to discuss the material that appears from the affidavit because we think the thesis on which her case rests is clearly outside s. 52 (j). One may put aside altogether the suggestion that the clause in the will devising the land at Palm Beach to Thomson could be excised from the will and administration c.t.a. granted with that devise omitted. It would be quite impossible to treat the devise as a severable part of the will which could be simply eliminated on the ground that it got there by inadvertence mistake or deception. It is enough to refer to the reasons of Lord Greene M.R. in Re Horrocks [1] . If the appellant is to obtain a greater interest in the estate of William Wood deceased than she took under the will of 13th May 1944 that has been proved, the whole will must be pronounced invalid and, as it appears, that fate must be shared by an earlier will of the same year.