'rniiisdilioiis Sociciv Naval . hi-lillcrls ami Murine luii/iiiccrs. I'ol. 2g, n).?r. 



Plate JT 



To illiislnilc l^af^cr on "lilcctrlc . Iii.viliarics on Merchant Ships' 

 by r.. IK I >icL'iiisoii, Esq., Member. 



Marine Controller for Deck Machinery Motors. 



