This is Our 



Latest 



Microscope 



No. 20 



IN THIS Microscope we have 

 embodied all the desirable 

 features ot the old construc- 

 tion and replaced other features 

 with improvements never be- 

 fore applied in this way. 

 The solid bronze arm provides a convenient handle for 

 carrying the microscope, and our new cone movement, 

 anti-friction bearing, fine adjustment furnishes a smooth 

 steady movement which is unsurpassed. 



The vulcanite-covered stage is extra large, giving ample 

 room for all kinds of work. The whole is beautifully fin- 

 ished. It is the handiest, handsomest microscope on the 

 market. 



20D. With 2 oculars, double nosepiece. 



16mm and 4mm objectives with upper iris 



diaphragm ....... 



20F. Same as above with condenser and iris 



diaphragm 



20H. With 2 oculars, triple nosepiece, 16mm, 



4mm and 2mm oil immersion objectives, 



condenser and iris diaphragms 



NET 



$ 57.00 



$ 64.50 



$ 90.00 



Spencer Lens Co., Buffalo, N. Y. 



