C. BAKEE S MODEL 



2O 



by fixed milled heads, and all fittings .-ire sprung and have adjusting 

 screws to compensate for wear, and fine adjustment by Campbell diffe- 

 rential screw which Mi-. Baker adopted for these microscopes in 1 888. 



FKJ. 105. C. Baker's Model (1895;. 



Swift and Son formerly made two instruments of the first class. 

 one having a bar movement similar to that of Andrew Ross, the 

 other a Lister similar to Beck's. The principal difference was that 

 the foot was of the ' bent claw' form. "NVe have alreaclv seen that 



