LABORATORY SUPPLIES AND CHEMICALS 



211 



3498 



3499 



3499(a) 



3498 MORTARS, Iron, bell shape, with pestle. 



Approx. capacity Y? 



Diameter, inches 4 



Each . $0.50 



1 2 4pt. 1 23 gal. 

 5 5 l / 2 6 l /2 9 11 14 

 .85 1.20 1.75 2.50 5.00 8.00 



3499 MORTARS, Iron, No. 1, high style. Best quality for powdering ore. 



Capacity 1 pt. 1 qt. % 1 2 3 gal. 



Each ! $0.60 .90 1.25 2.25 4.00 6.00 



3499(a) MORTARS, Steel. Polished inside and out; with pestle. 



Diameter, c.m 9 12 15 



Each . ..... $2.50 3.00 4.50 



3500 



3501 



3500 MORTARS, Buck's improved, of iron, especially adapted for grinding and amal- 



gamating. Through the manner in which the muller is constructed, the 

 contents of the mortar again pass under the muller. 



Diameter, inches & l /2 8 l /2 



Weight, pounds 30 76 



Weight Muller, pounds 16 49 



Price, each $7.50 10.00 



3501 MOTOR, for water, steam or compressed air. This motor can be attached to an 



ordinary apparatus stand and used for either stirring or shaking. Size, 5 

 inches diameter. Revolutions attained according to water pressure, as 

 follows: 



20 30 



2300 2800 

 Price , 



40 50 60 pounds water press. 



3400 3850 4200 revolutions per min. 



.$7.50 



