GRAVITY. 



'to four places of decimals, but little dependence 

 placed on the lall. 



Mineral Produ3iont. Solids. 



Platina, purified - r - 



hammered - • 



Platina, wire - - 



laminated - • 



Pure gold, cad 



hammered 

 Gold 22 carats fine, of the ftandards of Lon- 

 don and of Paris, cad 



hammered 

 French gold coin 2 ifj carats fine, cad 



coined 

 French trinket gold, 20 carats fine, caft 



hammered 

 Mercury - - 



l^ad, cafl 



Litharge 

 JPurc filver, cad 



hammered 

 Parifian filver, 11 den. 10. gr. fine, cad 



hammered 

 French filver coin, 10 den. 21 gr. fine, cad 



hammered 

 Bifmuth, caft ... 



Copper cad ... 



■wire . - . 



Brafs, cad - - 



Brafs wire .• - - 



Cobalt, caft 



Nickel, caft ... 



Iron, caft - - 



Bar iron ... 



Steel, hard, not fcrewcd 

 fcrewed 

 foft, not fcrewcd 

 fcrewed 

 Loadilone 

 Haematite 

 Tin, caft 



fcrewed - - - 



Zinc, caft - - - - 



Antimony, caft - - 



Glafs of antimony 

 Crude antimony 

 Tungftein - - - 



Arfenic, cad 

 Molybdena 

 Ponderous fpar 

 Jargon of Ceylon 

 Oriental ruby 

 Spiuelle ruby 

 Ballas ruby ■ - 

 Brafilian ruby 

 Pfeudolopaz 

 Bohemian garnet 

 Syrian garnet 

 Sapphire of Puy 

 Oriental fapphire 

 Sapphire of Brafil 

 Oriental topaz ... 



Saxon topaz 

 Brafilian topaz 

 ICmery - - 



Hyacinth . - 



few 



ay 



3-54*9 

 2.722 



3-53 'O 

 3.5212 



3 5°' 



3-53 



33852 

 2.9225 



2933-3' 

 2.8922 



2-7325 

 2.6423 

 2 4S82 

 3.1911 



3.1817 



3-1757 

 - 3.1683 



3-1555 

 3-i3'i 



2.8763 

 3.0626 

 2.9883 

 2. ['.960 

 2.9722 

 2.9660 

 2.9502 

 2.9C04 

 2.8642 



2-4'53 

 2,8376 

 27417 

 2.7242 

 2 7168 

 2.8160 

 2.7821 

 2.6923 



27755 

 2.7651 

 2.7640 

 2.711 1 

 2.7101 

 2.6911 

 2 6612 

 27302 

 2.7151 

 2.7141 

 2 6718 

 2.6695 

 2.3191 

 2 0860 

 2.0499 

 2.6644 

 2.6640 

 2.6541 

 2.6530 

 2-647 ■ 



2-6375 

 2.6137 



2 6021 

 2.601 

 2 5941 



2.5817 

 2.5901 

 2 5805 

 - 2.570 

 2.5638 

 2.4868 

 ■CrvflaUi-/ed 



