FOOTNOTES

[1] When in parallel the batteries are said to be ‘grouped down’; when in series they are ‘grouped up.’

[2] Leading Torpedo Man.

[3] Seaman Torpedo Man.

[4] Engine Room Artificer.

[5] Seamen.

[6] T.I. Torpedo Instructor.

[7] Periscope.

[8] Torpedo or Mine.

[9] Several submarines secured alongside each other to the depot ship.

[10] Periscope.

[11] Crossed anchor. The badge indicating the rating of Petty Officer.

[12] ‘Making’ a switch is switching on. ‘Breaking’ a switch is switching off.

[13] Mines.

[14] Naval Store Officer.

[15] The overhang of the stern.

[16] Senior Naval Officer.

[17] Ampères.

GLASGOW: WM. COLLINS SONS AND CO. LTD.