In my opinion, an isolated sale of kangaroo skins, not made in the course of carrying on a wider business of selling such skins, would not be an offence against s. 105 (a) of the Act. The expression "carry on business", in its ordinary meaning, signifies a course of conduct involving the performance of a succession of acts, and not simply the effecting of one solitary transaction. In Smith v. Anderson [4] , where the Court of Appeal considered the effect of s. 4 of the Companies Act, 1862 U.K. which spoke of an "association formed for the purpose of carrying on any business", Brett L.J. said [5] : "The expression "carrying on" implies a repetition of acts, and excludes the case of an association formed for doing one particular act which is never to be repeated." In Kirkwood v. Gadd [6] , Lord Loreburn L.C. said: "What is carrying on business? It imports a series or repetition of acts." In the same case Lord Atkinson [7] , referred with apparent approval to the statement of Brett L.J. in Smith v. Anderson [8] . Similarly, in Premier Automatic Ticket Issuers Ltd. v. Federal Commissioner of Taxation [9] , Dixon J., in a passage frequently quoted, said that "the carrying on or carrying out of any profit-making undertaking or scheme" in a taxation statute, "appears to cover, on the one hand, the habitual pursuit of a course of conduct, and, on the other, the carrying into execution of a plan or venture which does not involve repetition or system. " The decision in Cornelius v. Phillips [10] is not authority for any different view of the meaning of the expression. It was there held that a money-lender had carried on the business of money-lending at an hotel which was not his registered address although he had effected only one transaction at the hotel. In that case, which was recently discussed and distinguished in Yango Pastoral Co. Pty. Ltd. v. First Chicago Aust. Ltd. [11] , the single transaction which fell within the statutory prohibition was conducted by a person who was, on any view, carrying on a money-lending business. Similarly, in Lowe v. Cant [12] , it was held that a milk vendor who had been allotted a zone under regulations governing the supply of milk and who, on one occasion, delivered milk to a householder in another zone, had carried on business as a retail vendor of milk within a zone other than that allotted to him. Again, there was no doubt that the milk vendor was carrying on business as such or that the isolated transaction which occurred outside his allotted zone was done in the course of carrying on that business. In these cases, although the defendant engaged in only one transaction of the kind proscribed, that transaction was done in the course of carrying on a business. A single transaction may amount to the carrying on of a business, although no other transaction has so far been effected, if it is proved that there was an intention to carry on a business and that the transaction was undertaken in pursuance of that intention: Fairway Estates Pty. Ltd. v. Federal Commissioner of Taxation [13] . It seems clear that a solitary transaction of sale or purchase of skins in New South Wales will only constitute an offence against s. 105 (a) of the Act, if the sale of purchase has been made by the defendant with the intention that it shall be the first of several transactions in a business which he thereby commences to carry on, or if it has been made in the course of a business which the defendant is carrying on elsewhere.