406 



CENTRAL SCIENTIFIC CO., CHICAGO, U. 8. A. 



No. 10544. No. 10548. 



No. 10556. 



No. 10560. 



No. 10574. 



PIPETTES, PRECISION OR NORMAL 



10.130. PIPETTES, Mohr's, Precision or Normal, graduated at 20C., to meet the requirements of the 

 United States Bureau of Standards. With unofficial factory certificate. 



No A B C D E F 



Capacity, cc . 1 1 5 10 25 50 



Graduated to, cc Moo Mo Mo Mo Mo Mo 



Each $1.35 1.20 1.75 1.80 2.50 3.35 



9 



10531. PIPETTES, Mohr's, Precision or Normal, same as No. 10530 but standardized by the United 

 States Bureau of Standards. With control stamp. 



No A B C D E V 



Capacity, cc 1 1 5 10 25 50 



Graduated to, cc i,ioo Mo Mo Mo Mo Mo 



Each . 3.70 3.40 3.80 4.50 5.60 6.00 



10536. PIPETTES, Volumetric, Precision or Normal, graduated at 20C., to meet the requirements of 



the United States Bureau of Standards. With unofficial factory certificate. 



Capacity, ee 1 2 5 10 25 50 100 



Each 60 .70 .75 .90 1.05 1.20 1.65 



10537. PIPETTES, Volumetric, Precision or Normal, same as No. 10536, but standardized by the United 



States Bureau of Standards. With control stamp. 



Capacity, cc 1 2 5 10 25 50 100 



Each 1.90 1.90 2.00 2.10 2.25 2.60 3.40 



10544. PIPETTE BOTTLE, with pipette ground into neck and cap ground on. For use with volatile 

 and poisonous liquids. 



Capacity, cc 10 25 50 100 



Each 2.50 3.00 3.50 4.00 



For other PIPETTES, see Blood Testing Apparatus. 



10548. PIPETTE BOX, cylindrical, for use in sterilizing pipettes, of sheet copper, with tightly fitting 



cover with handle. Length, 15 inches; diameter, 2 inches 1.80 



10549. PIPETTE BOX, cylindrical, same as No. 10548, but made of sheet iron 1.30 



10552. PIPETTE BOX, rectangular form, of sheet copper, with overhanging cover with handle. Size, 



2x2x12% inches 3.30 



10553. PIPETTE BOX, same as No. 10552, but made of sheet iron 1.75 



10556. PIPETTE REST, of porcelain 60 



10560. PIPETTE SUPPORTS, of hardwood, revolving, for 12 pipettes 2.70 



PITCHERS, Acid, see Acid Pitchers. 



10570. PLANE, Block, iron, 5% inches long, 1*4 -inch cutter 80 



10572. PLANE, Double End, iron, 8 inches long, 1*4 -inch cutter. This plane may be used as a block 

 plane, or by reversing the cutter and wedge it can be used to plane close up into corners or 

 other difficult places 1.80 



10574. PLANE, Jack, wood bench plane, 2-ineh cutter, double iron 1.40 



