Page 40: Aircraft carrier, battleship, and the Lady Southern Cross
Top left: a picture of an aircraft carrier with planes on the deck, the planes appear to be Boeing F4B biplanes. Top right: a battleship stationed in Pearl Harbor. Bottom left: a dolphin or porpoise jumping out of the water. Bottom right: a 1934 picture of the "Lady Southern Cross" at one of the airfields on Oahu - that plane is a Lockheed Altair.