LABORATORY SUPPLIES AND CHEMICALS 



149 



2760 



2763 



2766 



2767 



2758 FLASKS, Erlenmeyer's. Non Sol glass. 



Capacity, oz 2 4 6 8 12 16 24 32 64 



Each ...$0.10 .12 .14 .16 .20 .27 .33 .42 .60 



Capacity, c.c.. 25 50 100 150 200 250 300 500 600 750 1000 1500 2000 3000 4000 



No .00 1 3 4 5 5 6 6 6 7 8 9 10 10 10 



Number in original 



case 360 276 180 252 144 132 132 72 60 48 36 24 24 15 12 



Each $0.13 .14 .15 .16 .16 .20 .21 .27 .28 .33 .42 .51 .60 .79 1.00 



2762 FLASKS, Extraction, Non Sol glass, wide mouth, short neck, for Soxhlet's 



extraction apparatus; so-called "Carbonic Acid" flasks. 



Capacity, ounces 1 2 4 6 8 



Each $0.13 .14 .15 .17 .19 



2763 FLASKS, Extraction, Pyrex Glass, flat bottom, with wide mouth and vial neck. 



Capacity c.c 50 100 150 250 500 750 1000 



To take rubber stopper, No 667 8 10 10 11 



Number in original case 168 120 108 120 60 48 36 



Each $0.13 .15 .17 .19 .29 .36 .54 



2764 FLASKS, Extraction, of Aluminum. Capacity, 4 oz. Each $1.50 



2765 FLASKS, Extraction, of Copper. Capacity, 4 oz. Each 1.50 



2766 FLASKS, Extraction, Knorr's, with mercury seal. Capacity, 100 c.c. Each.. .50 



2767 FLASKS, Acetylization, for determining Menthol in Oil of Peppermint, etc, 



with ground-in condensing tube. Capacity about 150 c.c. Length of 

 condensing tube, 1 meter $1.75 



2767(a) 



2767 (b) 



2767(c) 



2767(d) 



2767(a) FLASKS, Sulphur, flat bottom, with side neck bent at right angle, as used 



in determining sulphur in iron and steel. Capacity, 500 c.c 75 



27S7(b) FLASKS, Johnson's Sulphur, of Pyrex glass with heavy vial neck. 



Used widely for determining sulphur in iron and steel analysis. Capac- 

 ity, 275 c. c.; neck of size to take No. 6 rubber stopper 32 



2767 (c) FLASKS, Copper. 



Capacity, cc 250 500 1000 2000 



Each $2.25 2.50 3.00 4.00 



