Habitual dealing in slaves 372. Whoever sells, lets to hire, or otherwise disposes of any person under the age of eighteen years with intent that such person shall at any age be employed or used for the purpose of prostitution of illicit intercourse with any person or for any unlawful and immoral purpose, or knowing it to be likely that such person will at any age be employed or used for any such purpose, shall be punished with imprisonment of either description for a term which may extend to ten years, and shall also be liable to fine. Selling minor for purposes on prostitution, etc. Explanation I.- When a female under the age of eighteen years is sold, let for hire, or otherwise disposed of to a prostitute or to any person who keeps or manages a brothel, the person so disposing of such female shall, until the contrary is proved, be presumed to have disposed of her with the intent that she shall be used for the purpose of prostitution. Explanation II.- For the purposes of this section "illicit intercourse" means sexual intercourse between person not united by marriage or by any union or tie which, though not amounting to a marriage, is recognized by the personal law or custom of the community to which they belong or, where they belong to different communities, of both such communities, as constituting between them a quasi-marital relation.