The concern which motivated defence counsel to object to the plaintiffs proceeding by way of interlocutory applications does not accord with my present understanding of the authorities which is that the determination of whether an application is interlocutory or final for the purposes of r502 does not depend upon the form of the process which brought the application before the Court. I will, however, refrain from reaching a concluded view on the matter as I have not had the benefit of counsels' submissions on it. The authorities I have in mind relate to O41, r3(1). The differences between the wording of that rule and its successor, r502, do not appear to warrant giving r502 a different construction to O41, r3(1). In Comalco Aluminium (Bell Bay) Limited v Claudio [1970] Tas SR 231, Neasey J held that an application for an extension of time to take proceedings pursuant to the Workers' Compensation Act 1927, s9(8), was not an interlocutory application within the meaning of O41, r3, as it was an application for a final order not an interlocutory order. Accordingly, his Honour held that the affidavit in support of the application must be confined to facts to which the deponent was able to depose of his own knowledge. In Jacobs v Australian Abrasives Pty Limited A8/1971, Neasey J revisited this question and in the course of reviewing various authorities his Honour addressed the decision in Hall v The Nominal Defendant (1966) 117 CLR 432. There the High Court held that an order refusing an extension of time under the Traffic Act 1925, s65A, was to be characterised as interlocutory for the purposes of assessing whether the Judiciary Act (1903 - 1959) (Cth), s35(1)(a) required that leave be obtained before the order could be appealed. Neasey J concluded that Hall v The Nominal Defendant was not germane to the construction of O41, r3(1) because of the significant difference between the question whether an application was final or interlocutory for the purposes of that rule and the question whether an order was final or interlocutory for the purposes of the Judiciary Act, s35(1)(a). In Leitch v McCarthy B49/1995, Slicer J expressed agreement with Neasey J's decision in Jacobs v Australian Abrasives Pty Ltd. These are the authorities which cause me to doubt the soundness of defence counsels' concern that as the plaintiffs seek relief by means of .interlocutory applications, their applications will necessarily be categorised as interlocutory for the purposes of r502.