Picked up this random page recently which seems to list all the navy cadets enrolled on 15 January 1879 at Britannia. It seems to have been written at a later date (on or after January 1903) because it shows what has happened to the cadets in their naval careers. There are some interesting outcomes so will have a nosey around to see what I can find out. Watch this space. In the meantime, here is a transcription: