112 



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



I 



r 



No. 1932. 



No. 1934. 



A. B. 

 No. 1946. 



No. 1950. No. 1951. 



No. 1952. 



1932. BURETTES, Schellbach, Automatic, with zero point and overflow cup. With three-way stop- 

 cock, for refilling from reservoir. Graduated in i{ cc divisions. 



Capacity, cc 25 50 100 



Each $6.00 7.00 8.00 



1934. BURETTES, Automatic, Squibb 's, consisting of a Schellbach burette with Frosenius stop-cock 



mounted on reservoir. Complete with reservoir, clamp and suction tube, but without pres- 

 sure bulb. Capacity of burette, 50 cc. Graduated in ifo cc divisions 9.00 



1935. BURETTE only of No. 1934 5.40 



1936. CLAMP only of No. 1934 75 



PRESSURE" BULB for No. 1934, see No. 11530. 



1946. BURETTES, Calibrating, Morse's, for flasks, burettes, and pipettes. 



No A B C 



Capacity of bulbs, ce 500 200 & 50 50, 3 & 2 



Each 10.50 6.75 7.50 



1947. STOP-COCK, three-way, for No. 1946 3.50 



1948. BURETTE, Calibrating, Morse's, 1 cc, with three-way stop-cock, for small quantities... 6.00 



1950. BURETTES, Dispensing, for pinchcock, without fittings. 



Capacity, cc 250 500 1000 



Graduated in, cc 1 5 10 



Each 4.00 4.50 5.50 



1951. BURETTES, Dispensing, with straight glass stop-cock. 



Capacity, cc 250 500 1000 



Graduated in, ce 1 5 10 



Each 5.40 5.60 7.00 



1952. BURETTE, Weighing, Ripper's, arranged for suspending from balance hook by aluminum wire. 



Graduated to 60 ec in 5 cc divisions 3.50 



BURETTES, PRECISION 



1958. BURETTES, Precision or Normal, for pinchcock, graduated to meet the requirements of the 



United States Bureau of Standards. With unofficial factory certificate. Without fittings. 



Capacity, cc 10 25 50 100 



Graduated in, cc 1 i^ i/j } 



Each 2.60 3.00 3.70 4.50 



1960. BURETTES, Precision or Normal, with straight glass stop-cock with tip curved. Graduated to 



meet the requirements of the United States Bureau of Standards. With unofficial factory 



certificate. 



Capacity, cc 25 50 100 



Graduated in, cc i^ 1 i/- 



Each 4.10 4.80 5.20 



1962. BURETTES, Precision or Normal, with straight glass stop-cock with curved tip, tested by the 



United States Bureau of Standards. With control stamp and certificate of corrections. 



Capacity, cc 25 50 ] Ot i 



Graduated in, cc }<J 1^ u 



Each - , 7.75 8.35 9.00 



