Section 4 of the Acts provides, inter alia, that a sub-contractor who does or procures to be done any work upon or in connexion with any land, or any building or other structure or permanent improvement upon land, is entitled to a lien upon the whole interest of the employer in that land or upon the moneys payable to the contractor, as the case may require, for the contract price of his work, subject to certain conditions and limitations which it is not necessary to set forth. Section 10 requires that a sub-contractor who intends to claim a charge upon money payable by the employer shall, before the completion of the work in respect of which it is claimed, or within seven days after the completion, give notice to the employer specifying the amount and particulars of his claim, and stating that he requires the employer to take the necessary steps to see that it is paid or secured to the claimant. He is also required by this section to give notice of having made such claim to the person who but for the claim would be entitled to receive from the person to whom the notice of claim is given the money in respect of which it is given. Such notices were duly given by the defendant. Section 11 prescribes the form of notice to be given and s. 12 provides that upon receipt of a notice of a claim of lien or charge, it shall be the duty of the person by whom it is received to retain in his hands, until the time prescribed by the Acts for taking proceedings for enforcing the lien or charge has expired, a sufficient part of the money payable by him under his contract to satisfy the claim of the claimant. In default of such retention he is, subject to the ensuing provisions of the Act, personally liable to pay to the claimant the amount of his claim not exceeding the amount he should have retained in the same manner and to the same extent as if the claimant had been employed by him personally. Pursuant to s. 14, when notice has been given of an intention to claim a lien or charge under the Acts, and the person to whom it is given does not pay or make satisfactory arrangements for paying to the claimant the amount claimed, the claimant may recover the amount of the lien or charge from the owner, if liable, of the land or the person by whom the money subject to the charge is payable. The time within which proceedings must be taken is prescribed by s. 19 which provides that proceedings in respect of a lien or charge shall be commenced by summons, which may be in any form prescribed by rules of Court or other practice of the Court. Such proceedings must be commenced within thirty days after the completion of the work in respect of which the lien or charge is claimed and if proceedings are not taken within that time, the lien or charge is extinguished. It should also be mentioned that s. 15 makes provision for the summary determination of disputes between persons claiming under the Act. That section provides that claims under the Acts may be enforced, and questions and disputes between persons claiming a lien or charge and any other person or persons liable or alleged to be liable to pay any amount claimed, or otherwise interested in any property or money which may be affected by a lien or charge or claim of lien or charge, and also between persons or classes of persons claiming a lien or charge, may be settled upon application in summary manner to any Court having jurisdiction in the matter as declared by the Acts.