Portable or Travellers' Microscopes 



39 



xllumnator, referred to previously, with this fitting renders 

 an ordinary microscope thoroughly serviceable for meta 

 lurgica purposes, but it would not, of course havTthe" 

 vertical adjustment to the stage itsel 



Fig. 13.— Thavellees' Mickoscope. 

 By J. Swift and Son. 



PORTABLE OR TRAVELLERS' MICROSCOPES. 



A large variety of these are made, every maker having 

 some pattern possessing especial merit. Among these may 



