CENTRAL SCIENTIFIC CO., CHICAGO, TJ. S. A. 



355 



Nos. 8958, 8961 and 8962. 



No. 8968. 



No. 8992. 



No. 8978. 



No. 8994. 



8958. KNIVES, Microtome, of selected steel, so ground and tempered as to produce an edge which is 

 not brittle and at the same time is hard enough and tough enough to retain its keenness. Com- 

 paratively easy to sharpen; evenly tempered; broad and heavy. Without handle or back, in 



velvet case. Xo ." A B C D 



Cutting edge, mm 50 110 185 250 



Each $4.50 6.00 10.00 15.00 



8960. KNIVES, Microtome, similar to Xo. 8958, but designed specially for use with Microtome Xo. 



8922. Length of cutting edge, 110 mm. Without handle or back; in velvet lined ease. 



Xo A B 



For sections celloidin paraf fine 



Each 7.00 7.00 



8961. HANDLE, Ebonized, for use in sharpening Xos. 8958 and 8960 Microtome Knives. The han- 



dle is provided with steady-pins to hold it in proper position, while the handle-rod is threaded 

 to engage directly with the corresponding thread cut in the knife, and is tightened by means 

 of a milled head. " The metal parts are finely nickel-plated 1.00 



8962. HONING BACK for Xo. 8958B Microtome Knife, to be used in order that the knife may rest 



upon the honing stone at the proper angle when being sharpened. Polished and nickel- 

 plated 1.00 



8963. HONING BACK for Xo. 8960 Knives 1.00 



8966. KNIFE, Microtome, Chisel Blade, for use on the table microtome, especially where a freezing 



chamber is used. Cutting edge, 88 mm. The handle is of such size and shape that the knife 

 may be easily held in the desired position 4.00 



8968. KNIFE HOLDEB for Safety Razor Blades, of brass, nickel-plated, for use on any microtome 

 which has a knife clamp. The thin edge of the blade projects beyond the upper edge of the 

 holder just enough to keep it as rigid as possible, and at the same time far enough to allow 

 the specimen to pass by the holder after cutting the section 4.00 



8972. PITH, for use in cutting sections; in sticks about 100 mm in length and 6 to 12 mm in dia- 

 meter; in packages of about 50 grams per package .10 



8978. RAZOR, Section, folding handle, best quality: one side of blade flat, the other side concave: 

 straight edge, hard rubber handle; length of blade, 80 mm. In case 2.30 



8986. STROP, Microtome Knife, consisting of a flat strip of wood with handle, on the sides of which 



are cemented pieces of leather l*i by 11 inches long. One side has been treated with car- 

 borundum powder, the other is left smooth for finishing 1.25 



8987. STROP, Microtome Knife, similar to Xo. 8986, but with leather on one side only which has 



been treated with carborundum. Dimensions. 2*4x15 inches 1.50 



STROP. Microtome Knife, same as Xo. 8987, but covered with best shell butt horsehidel 2.25 

 STROP, Razor, 21x2 inches, of double Russian red leather, with India filled back, corrugated 



with nickel-plated swivel and handle 1.00 



8994. STROPS, Razor, Emerson's, of calf -skin, specially selected for use with* microtome knives and 



section razors. No A B 



Length, inches 13% 17V, 



Each i.oO 2.00 



S996. DRESSING for strops per box .20 



