LABORATORY SUPPLIES AND CHEMICALS 



31 



WEIGHTS 



1311 



1315 



1311 Weights adjusted to meet the requirements as set forth by the U. S. Bureau 

 of Standards. The gram Weights are made of Tobin bronze. They are made of 

 one piece heavily gold-plated. The fractions of the gram of Platinum. 



In mahogany, loose or hinged covered, velvet lined boxes, 

 separate compartment. 



Each Weight fitted 



1313 WEIGHTS GRAIN. (See above). 



Grains Price 



10 to 1/100 grain $24.00 



100 1/100 grain 40.00 



1000 1/100 grain 52.00 



1315 WEIGHTS OF PRECISION (First Quality) 



These Weights are adjusted accurately for general use, where weights of First 

 Quality are desired. Gram weights are of brass screw-knob, polished and lacquered. 

 The fractions of the gram are of Platinum from 500 mgm. to 50 mgm., and from 

 20 mgm. to 1 mgm. of aluminum. 



In mahogany, loose or hinged covered, velvet lined boxes. Each weight fitted in 

 separate compartment. 



Price 

 Grams Milligrams Price Gold-plated 



5/10 to 1/10 $ 2.00 



to 1/10 20.00 $21.50 



1 and three riders 21.00 23.00 



1 21.00 23.00 



22.00 25.00 



. - 24.00 28.00 



30.00 37.00 



36.00 44.00 



two 

 one 



10 



20 



20 



50 

 100 

 200 

 500 

 1 kilo 



43.00 53.00 



1317 WEIGHTS, GRAIN. (See above.) 



Grains 

 10 

 100 

 H)00 



tu 



Price 



1/1000 grain $20.00 



1/1000 grain 21.00 



1/100 grain with 3 riders . 23.00 



