The provisions of Pt XXIX generally make it clear that a county council is a municipal body, set up by the Governor under the authority of the Act for the purpose of exercising or performing powers or duties which would otherwise be exercised or performed by the municipal or shire councils within the county district. To indicate the public nature of a county council, and its close connexion with the municipal and shire councils within the county district, it is sufficient to refer to some only of the other provisions of the part. Where a county district is constituted for the purpose of the supply of water, gas or electricity in bulk only, and the Governor delegates to the county council the power to exercise or perform, for the benefit of the county district, so much of any power or duty which by law those councils or any one of them may exercise or perform, as relates to the supply of water, gas or electricity in bulk only, the following consequences follow - each constituent council shall have power to exercise or perform so much of any power or duty as has not been delegated to the county council; a county council may with the consent of the council of an area supply water, gas or electricity, otherwise than in bulk, to persons within that area; the county council shall sell and deliver the water, gas or electricity to the constituent councils and a constituent council shall not, except with the consent of the county council, supply water, gas or electricity which has not been bought and received from the county council (s. 564 (2A), (4A)). Where the powers and duties in relation to any works (other than works for the purpose of the supply of water, gas or electricity in bulk only) which are vested in, or controlled and managed by, the council of an area wholly or partly included in a county district are delegated to the council of that county district then, to state the matter broadly, all property, rights and liabilities in connexion with those works are transferred to the county council, and employees wholly or principally employed in connexion with such works are transferred to the service of the county council (s. 564B). Where the boundaries of a county district are altered by adding an area or part of an area, the council of that county district shall have all the functions, powers and duties which it was entitled to exercise immediately before the alteration and such functions, powers and duties shall be deemed to have been delegated to the county council in respect of the area or part added to the county district; conversely when the boundaries are altered by excluding the whole or part of a constituent area without at the same time adding it to another county district the functions, powers and duties exercisable by the county council immediately before the date of the alteration of the boundaries shall be limited to the county district as constituted after that date and those functions, powers and duties shall be exercisable and performable within the excluded area by the council of the shire or municipality of which the excluded area forms part (s. 564 (3A), (3C)). The Treasurer may guarantee the due repayment of money borrowed by a county council for the purpose inter alia of works for the supply of electricity (s. 564D). A majority of the councils concerned may make an agreement respecting the whole or any part of the powers delegated to the county council, and in particular, prescribing the manner in which the expenses of the county council, other than expenses in respect of a matter for which the county council is authorized to rate, are to be met by the municipal and shire councils concerned; in the absence of an agreement the county council may assess its expenditure upon the constituent councils in the manner prescribed by the Act (ss. 565, 572B). Where a power of rating is delegated to a county council it may levy the rate directly or (except in the case of a loan rate) may require the councils concerned to act as its agent in levying the rate (s. 572 (1)).