The Advance of Wireless Science and invention have made great strides in numerous directions during the present century, but for sheer rapid development combined with usefulness to mankind the science of wireless telegraphy has probably made greater strides than any other branch of scientific inventive activity. Wireless telegraphy has proved a boon in many ways, but in none to a greater degree than in ite relation to shipping and navigation, It is remarkable to think that it is only nineteen years since wireless was first installed in a passenger vessel, especially bearing jin mind that at' the present day practically every ocean-going passenger vessel and the majority of large cargo-ships have a wireless installation. Some of the inventions conecutary to wireless telegraphy are almost as remarkable as the original invention. One of the most important of these is what is known as the wireless beam transmitter, an apparatus which is intended to enable all classes of coasting shipping fitted with an appropriate receiver, including vessels which do not carry wireless operators, to obtain correct bearings when in fog or when the position is doubtful. Another remarkable wireless side-line" is the wireless bell, which
Com between lightships and. shore aph apparatus for communica-used principally in wireless tele-
stations, while yet another is a wireless set for ships' lifeboats, which has specially been designed with view to the fact that it will be used under the most adverse weather contions and in a very confined space. 'The transmitter can attract a ship using a crystal detector at a dist ance of 50 miles, and the receiver kas directional qualities. Considering the importance of shipping to this part of the world, it is surprising that wireless, in' its various forms, has not already been adopted much more extensively than is the case. There are very few powerful wireless stations in China, there is no direction finding station, and only small proportion of local passenger ships are fitted with wireless means of communication. Now that the advantages of wireless telegraphy have so definitely been established, we can hope that in the not distant future the China Coast shipping will enjoy some of the advantages and additional' safety attendant upon wireless which at present it is denied.
Text read from the printed page and cleaned; old type leaves the occasional error.