100 



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



No. 1648. 



No. 1650. 



No. 1654. 



No. 1658. 



No. 1662. 



No. 1666. 



1648. BOTTLE, Immersion Oil, unspillable, with -wooden stopper and wire dropper $0.60 



1650. BOTTLE, Immersion Oil, with nickel-plated cap, which cannot gum, and device for regulating 

 amount of oil on plunger 75 



1654. BOTTLES, Insect, bent neck. 



Capacity, ounces % " 



Per dozen. 90 1.60 



1656. BOTTLE, Insect, cyanide, for collecting and killing, 4 ounce, ready for use 25 



1658. BOTTLE, Measuring, designed by C. V. Bockius, of the Underwriters' Laboratories, for rapidly 

 measuring and delivering a certain quantity of reagent where an approximate measure- 

 ment is sufficient. An air opening is provided at the top for controlling the flow. Gradu- 

 ated to 25 cc in 5 cc divisions. Capacity of bottle, about 250 ce 6.00 



1662. BOTTLES, Oil Sample, clear flint glass, with rounded shoulder and concave bottom. The 4 ounce 

 size is cleaned and fitted with corks. 



Capacity, ounces 1 2 4 8 



Each 07 .08 .12 .15 



Per dozen 60 .80 1.15 1.50 



1664. BOTTLES, Oil Sample, 4 ounce size, clear flint glass, with square shoulder and flat polished 



bottom. Cleaned and fitted with corks Each .20 



Per dozen 2.00 



1666. BOTTLES, Pressure, Lintner'S, for digestion under pressure, with glass cap and rubber gasket, 

 mounted in brass frame. 



Capacity, cc 125 250 



Each 3.00 4.00 



