PHILADELPHIA 
Caboratorp microtomes 
LARGE SIZE 
The dimensions of the Laboratory Microtome, large size, are as follows : 
Length of Bed 312 mm. 
Height 208 mm. 
Vertical Movement of Object by Micrometer Screw . 20 mm. 
Vertical Adjustment of Object by Clamp 46 mm. 
Diameter of Head of Micrometer Screw 90 mm. 
Graduations on Head of Micrometer Screw .... 500 
Pitch of Micrometer Screw 0.5 mm. 
Finest Degree of Feed 2 niicra. 
Length of Cutting Edge of Knife 156 mm. 
2120. Latge Laboratory Microtome with Universal Clamp and 
Knife with 156 millimeter cutting edge $60 00 
2122. Automatic Feed Attachment, 15 00 
This attachment is applicable only to the large and medium 
Laboratory Microtomes, which are provided with the Lever 
Feed. 
2124. Knife Clamp, for rigidly clamping microtome knives at the back, $5 00 
MEDIUM SIZE 
The dimensions of the Laboratory Microtome, medium size, are as follows : 
Length of Bed 234 mm. 
Height 156 mm. 
Vertical Movement of Object by Micrometer Screw . 13 mm. 
Vertical Adjustment of Object by Clamp 33 mm. 
Diameter of Head of Micrometer Screw 78 mm. 
Graduations on Head of Micrometer Screw .... 500 
Pitch of Micrometer Screw . . > 0.5 mm. 
Finest Degree of Feed 2 micra. 
Length of Cutting Edge of Knife 104 mm. 
2126. Medium Laboratory Microtome, with Universal Clamp and 
Knife with 104 millimeter cutting edge $50 00 
2128. Polished Cherry Case, with handle and lock and receptacle 
for knife case 5 00 
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