58 



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



No. 742. 



No. 738. 



No. 740. 



No. 754. 



No. 758. 



738. WEIGHTS, Metric, separate weights, same quality as No. 734 and 736, for replacements. 



Size, grams ............. 1 2 5 10 20 50 100 200 500 1000 



Each ................... $0.22 .25 .28 .33 .40 .50 .65 1.25 2.00 3.90 



740. WEIGHTS, Metric, of polished brass, flat shape, in hardwood block with hinged cover, suitable 

 for ordinary laboratory work. Nos. A-C are provided with receptacle for the fractional weights 

 which are of German silver. Without forceps. 



No ................... A B C D E F 



Size ................... lcg-20g lcg-50g Icg-lOOg lg-200g lg-500g Ig-lOOOg 



Per set ................ 2.25 2.75 3.35 4.50 7.00 10.00 



742. WEIGHTS, Metric, of brass, same as No. 740, but in hardwood block. Without forceps. 



No .................... A B C D E F 



Size ................... leg-20g lcg-50g Icg-lOOg lg-200g lg-500g Ig-lOOOg 



Per set ................ $1.65 2.00 2.75 4.00 6.00 9.00 



744. WEIGHTS, Metric, Brass, same as Nos. 740 and 742, separate for replacements in other sets. 



Size, grams ............. 1 2 5 10 20 50 100 200 500 1000 



Each .................... 11 .14 .17 .20 .25 .40 .55 .95 1.80 3.35 



746. WEIGHTS, Metric, .Fractional, of German silver and aluminum. Set 1 to 500 milligrams, with 

 duplicates of 2, 20 and 200 milligram pieces, in covered hardwood box with sliding cover. Each 

 weight in a separate compartment; with brass forceps ........................... per set 1.65 



748. WEIGHTS, Metric, Fractional, of German silver and aluminum, put up in sets of 1 mg to 500 mg 

 with duplicates of 2, 20 and 200 mg pieces; in pasteboard box ................. per set .50 



750. WEIGHTS, Metric, Fractional, Single, same as No. 748, for replacements ............ Each .05 



752. WEIGHTS, Avoirdupois, of nickel silver, from 1/128 to 

 1/64, 1/32, 1/16, %, and % oz 



754. WEIGHTS, Avoirdupois, of brass, in hardwood block, carefully adjusted. 



No ................................................... . . . . A B C 



Size % oz. to, Ibs ......................................... 124 



Per set ................................................... 5.00 6.50 9.45 



756. WEIGHTS, Avoirdupois, same as No. 754, single for replacements. 



Size, ounces ____ % }4 % 1 2 4 8 Pounds 1 



Each ........... 29 .37 .43 .51 .72 .86 1.00 1.45 



ounce, consisting of one each 1/128, 

 Per set 2.00 



2.30 



4 

 3.90 



758. WEIGHTS, Decimal Pound, brass in block, from 0.5 to 0.001 Ib. with duplicates of the 0.1, 0.01, 

 and triplicates of the 0.001 Ib. weights. Adds up to make 1 pound. Especially valuable in test- 

 ing laboratories where results must be reported in English units ................. per set 11.00 



