104 



A. DAIGGER & COMPANY, CHICAGO, U. S. A. 



COLORIMETRIC APPARATUS 



mm 



2341a 2341b 



2341c 



2341d 



2341f 



2341J and k 



CARBON BATH. See Bath. 



2341 CARBON DISSOLVING TUBES Test tube form. 



Size, inches 6x$/ 8 8x1 



Per dozen $0.50 $1.00 $1.00 



2341a COLOR COMPARING TUBES Eggertz', for the colorimetric estimation of 

 carbon and manganese in steel. 



Capacity, c. c 25 30 50 50 100 



Graduated to c. c. . , 1/10 1/10 1/5 1/10. 1/5 



Per set of 2 $3.50 $4.00 $4.50 $5.00 $5.50 



Per set of 4 7.00 8.00 9.00 10.00 11.00 



2341b COLOR COMPARING TUBES, As above, but with ground in glass stoppers. 



Capacity, c. c 25 30 50 50 100 



Graduated to c. c 1/10 1/10 1/5 1/10 1/5 



Per set of 2 $4.50 $5.00 $5.50 $6.00 $6.50 



2341c COLOR COMPARING TUBES, bent ends, designed by the late Mr. Frank 

 Julian. By inclining the tubes the contents may be mixed without 

 loss or necessity of placing a stopper in the tube, lower portion un- 

 graduated. 



Grad. from c. c 5 to 25 5 to 30 10 to 50 10 to 50 10 to 70 



Divided in c.c 1/10 1/10 1/5 1/10 1/1 



Per set of 2. ... $3.50 $4.00 $4.50 $5.00 $5.50 



Per set of 4 4.50 5.00 5.50 6.00 6.50 



2341d COLOR COMPARING TUBES, Camp's, for determiuning manganese in 



steel, designed by Mr. J. M. Camp of Pittsburgh, Pa.,' per set $ 9.00 



2341e COLOR COMPARING TUBES, test tube form, graduated to 1/10 c.c. 



Capacity, c. c 10 15 



Each $0.75 $0.90 



2341f HEHNER'S CYLINDERS. For the estimation of iron in water, consist- 

 ing of two graduated glass tubes of same size and graduation, 

 with stop-cocks and brass bases $12.00 



2341h Same, without brass bases 7.50 



2341J NESSLER'S JARS. For ammonia test, of clear colorless glass with 

 polished bottoms. 



Graduated to c. c 50 100 50 & 100 50-100 & 150 



Each .' $0.50 $0.60 $0.75 $1.00 



2341k NESSLER'S JARS. Tall form, University of Illinois pattern, of clear color- 

 less glass, with polished bottoms, with lip, 255 mm. high, 

 graduated at 50 c. c. 



In sets of 12 to agree, per set $ 6.00 



In sets of 6 to agree, per set 3.00 



