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



173 



No. 3414. 



No. 3416. 



NOS. 3428-9. 



3422. CRUCIBLES, Transparent Quartz, of tall, narrow (so-called platinum) shape, 'without covers. 



No A B C D E F G H 



Capacity, ec 10 20 30 40 50 60 80 100 



Diameter at top, mm 28 35 40 45 50 54 58 65 



Each 3.60 6.00 8.40 10.20 12.00 13.80 16.80 19.80 



3424. CRUCIBLES, Transparent Quartz, Gooch Form, same diameter as No. 3422 and with 7 holes 2 mm 



in diameter in the bottom. Without covers. 



No A B C D E F G H 



Capacity, cc 10 20 30 40 50 60 80 100 



Each 5.40 9.00 12.60 15.30 18.00 20.70 25.50 29.70 



3425. CRUCIBLE COVERS, Transparent Quartz, for Xos. 3422 and 3424 Crucibles. 



For crucibles, Xo A B C D E F G H 



Each 1.20 1.80 2.40 2.70 3.00 3.30 3.60 3.90 



3426. CRUCIBLE COVERS, Rose's, Transparent Quartz, for No. 3422 Crucibles, with delivery tube. 



For crucibles, Xo. 

 Each .. 



3428. CRUCIBLES, Sand, Dixon's Assay, round form, without covers. 



Xo A B C 



Diameter outside, inches 1% 1% 2% 



Height outside, inches 2% 3 3% 



Each 10 .10 .10 



Per 100 5.50 6.50 7.00 



No J K L 



Diameter outside, inches 4% 4% 5% 



Height outside, inches 6% 7*4 8 



Each 50 .55 .75 



Per 100 40.00 45.00 64,00 



3429. COVERS for No. 3428 Crucibles. 



No A B C D E 



Each 05 .06 .07 .07V 2 .08 



Per 100 4.50 5.00 6.00 6.50 7.00 



No J K L M N 



Each . 15 .20 .21 .22 .24 



A B 



3.00 3.60 



Sizes same as Battersea. 



F 



.10 



8.50 



P 



.26 



G 



.12 

 10.00 



Q 



.28 



H 

 .14 



12.00 



R 



.30 



Per 100 13.50 16.50 18.00 19.00 20.00 21.00 24.00 25.00 



