The law relating to partners by holding out is contained in Section 28, which lays down thus: "Anyone who by words, ________ represents himself, or knowingly permits himself to be represented to be a partner in a firm, is liable as a partner in that firm to anyone who has on the faith of any such representation given credit to the firm, whether the person representing himself or represented to be a partner does or does not know that the representation has reached the person so giving credit".