BAIRD & 1ATLOCK (LONDON) LTD. 



MAGNIFYING POWERS 



of Leitz's Achromatic, Fluorite, and Apochromatic Objectives in combination with the 



Huyghenian Eyepieces. 



Tube-length : 170 mm. Image Distance : 250 mm. 



The meaning of the term " Initial Magnification " of an objective and " eyepiece magnification " is fully 

 explained in our booklet entitled " The Microscope and How to use it." 



14 -CROSS STREET HATTCTNT GARDETST, E'C 



