Section 4. Mixed sea and land risks

4. Mixed sea and land risks.— (1) A contract of marine insurance may, by its express terms, or by usage of trade, be extended so as to protect the assured against losses on inland waters or on any land risk which may be incidental to any sea voyage. (2) Where a ship in course of building or the launch of a ship, or any adventure analogous to a marine adventure, is covered by a policy in the form of a marine policy, the provisions of this Act, in so far as applicable, shall apply thereto, but except as by this section provided, nothing in this Act shall alter or 4. From the loading thereof.— Where goods or other movables are insured "from the loading thereof", the risk does not attach until such goods or movables are actually on board, and the insurer is not liable for them while in transit from the shore to the ship.