19TH CENTURY WIRELESS TELEGRAPHY - These files contain all kinds of information relating to the EARLIEST OF DAYS OF W/T IN THE NAVY. This is a good one for the submarine branch. Have a look at this file Captain Jacksons other interests.pdf.  Captain Jackson wasn't just interested in W/T, he was a scientist and had both feet in many camps!

HMS Vernon takes centre stage in many of these file.  To help you to understand what HMS Vernon was 100 years ago read this file first HMS VERNON