M.D., Edinburgh University. 



19. METALLURGY. By John Mayer, F.C.S., Glasgow.- 



20. NAVIGATION. By Henry Evers, LL.D., Plymouth. 



21. NAUTICAL ASTRONOMY. By Henry Evers, LL.D. 



22A STEAM AND THE STEAM ENGINE LAND AND MARH 



By Henry Evers, LL.D., Plymouth. 

 221) STEAM AND STEAM ENGINE LOCOMOTIVE. By Her 



Evers, LL.D., Plymouth. 



23. PHYSICAL GEOGRAPHY. By John Macturk, F.R.G.S. 



24. PRACTICAL CHEMISTRY. By John Howard, London. 



25. ASTRONOMY. By J. J. Plummer, Observatory, Durham. 



