refractive and dispersive Powers . 
375 
Table II. 
Nitro-muriate of gold 
Nitro-muriate of platina 
Nitrate of iron - 
Sulphuret of potash 
Red muriate of iron 
Nitrate of magnesia 
Nitric acid - 
Nitrate of jargon 
Balsam of Tolu - 
Acetite of litharge (extract of lead) 
Nitrate of silver 
Nitrate of copper 
Oil of sassafras 
Muriate of antimony 
Nitrate of lime 
Nitrate of zinc 
Green muriate of iron 
Muriate of magnesia 
— — of lime - 
— ■ - of zinc 
Essence of lemon - 
Balsam of capivi - - 
la Water. 
i,3 6 4 
i.37° 
1.375 
1.375 
i.3®5 
In Alcohol, 
i>39° 
1,395 
1,400 
1,400 
1,410 
1.405 
1,410 
1,422 
1,4*5 
1,416 
1.4 2 5 
1.425 
1,440 
1,430 
1,440 
It may here be seen, that several of the metals increase the 
dispersive powers of nitric and muriatic acids, and consequently 
exceed them in that respect. Of all these substances that I have 
yet tried, gold and platina are the most dispersive. The least 
dispersive of the metals is zinc. 
3C 2 
