(b)the consent of a person is required under section 58 to the issue of the prospectus and he either has not given that consent or has withdrawn it before the issue of the prospectus, the Directors of the company excluding those without whose knowledge or consent the prospectus was issued, and every other person who authorised the issue thereof, shall be liable to indemnify the person referred to in clause (a) or clause (b), as the case may be, against all damages, costs and expenses to which he may be made liable by reason of his name having been inserted in the prospectus or of the inclusion therein of a statement purporting to be made by him as an expert, as the case may be, or in defending himself against any suit or legal proceeding brought against him in respect thereof: