28 
MECHANICAL PORTION OF THE MICROSCOPE. 
48 . 
seen behind the stage, 
acts upon a lever, which 
effects a delicate fine 
adjustment of the focus. 
This movement adapts 
this form of the stu- 
dent’s microscope to be 
used with the higher 
powers. The stage is 
three by four inches, and 
has spring clips for se- 
curing the object. A 
circular plate attached 
beneath the stage, and 
carefully centered, af- 
fords attachment to the 
polarizer and achromat- 
ic condenser, and any 
other apparatus which 
requires to be attached 
beneath the stage. 
Every kind of access- 
ory apparatus may be 
used with this instru- 
ment. Medical students, 
and all others who can- 
not afford the larger in- 
struments, will find this 
microscope well adapt- 
ed to almost every kind 
of observations, even 
with the highest powers. 
Tlie Student’s I..argcr Microscope, shown in figure 
NO. 8. STUDENT’S MICROSCOPE. 
Thirteen inches high when arranged for use. 
10, is made of the dimensions agreed upon by microscopists as 
most convenient for general use, and fitted for the application 
of accessory apparatus of such dimensions as to secure their 
greatest desirable efficiency. The tripod base is large and 
J. & W. GRUNOW & GO’S ILLUSTRATED 
