[27] 360 degrees = a complete circle.
[28] For a complete description of how to make and use wireless apparatus, and how it works, see The Book of Wireless, by the present author, and published by D. Appleton & Co., New York.
[29] A floating dock is built with a water compartment on each side and a platform on the bottom, thus leaving a large open space in between to hold a submarine or other vessel. By partly filling the compartments with water the platform sinks into the water deep enough so that the vessel can pass over and on top of it; then by pumping the water out of the compartments the floating dock is raised and the platform with the vessel on it is lifted out of the water where she can be examined and repaired if necessary.
[30] Integral means a part of a whole thing which is needed to make it complete.
[31] A cipher code is one in which the message is telegraphed in the Morse alphabet of dots and dashes as usual, but the words which form the message are given other meanings which have been previously agreed upon, and this prevents the enemy from knowing what is sent.
[32] The word auxiliary in this sense means other smaller and less important craft which give aid to and supports the larger and more powerful ships of the fleet.
[33] A squadron is one of the divisions of a fleet.
[34] A country that neither helps nor hinders the countries that are at war is said to be neutral.
[35] July, 1917.
[36] A boat’s capacity for cargo.