LABORATORY SUPPLIES AND CHEMICALS 



3.$ 



1329 



1331 



1328 WEIGHTS, Assayton. Furnished in mahogany box as illustrated; of brass 

 polished and lacquered. These weights are accurately adjusted to a 

 standard of 29.1666 grams equals 1 Assayton. One A. T. contains 

 as many milligrams as there are troy ounces in a ton (avoirdu- 

 pois, 2000 pounds). Therefore, if one A. T. of ore assays one 

 milligram the ton contains one troy ounce. Price 

 4 A. T. to 1/20 A. T $9.00 



1 A. T. to 1/20 A. T 4.50 



2 A. T. to 1/20 A. T 6.75 



Containing 1 A. T., 1/2, 1/3, 1/4, 1/5, 1/10 and 1/20 A. T 6.00 



1331 WEIGHTS, Second Grade. Gram Weights are of brass, two pieces, polished 

 and lacquered, furnished in mahogany box with hinged cover, as 

 per illustration. Fractions of the gram are of German silver and 

 Aluminum. 

 Grams Milligrams Price 



1 to 1 $ 7.00 



10 1 8.50 



20 1 9.50 



50 1 12.00 



100 1 14.00 



200 1 17.00 



500 1 20.00 



1 kilo. 1 27.00 



1333 WEIGHTS, Factor. Brass polished ad lacquered. Price, Net 



Carbon Factor, 2.7273 grams $1.30 



Y 2 Carbon Factor, 1.3636 grams 1.30 



Y^ Silicon Factor, 1.1755 grams 1.30 



Prosphorous Factor, 1.63 grams 1.30 



1/10 Silicon Factor, 0.4702, Platinum 7.00 



1335 



Gram 



1335 

 COMMERCIAL, Brass Polished and Lacquered. 



Troy Ounces 

 1 to 



Price 



20 to 1 centigram $ 4.50 



50 1 centigram 5.25 



100 1 centigram 6.75 



200 1 centigram 9.50 



500 1 centigram 13.00 



">oo i milligram 14.50 



J kilo 1 centigram 17.00 



1 kilo " 1 milligram 18.50 



two 



2 

 5 



10 



20 



50 



100 



200 



500 



Price 



grain $ 4.50 



grain 7.50 



grain 9.00 



grain 12.00 



grain 19.00 



grain 26.00 



grain 37.00 



grain 55.00 



grain 120.00 



