( ttf ) 



Muriatic acid gas, 



* earth, . 



Muri-calcite, 

 Mufca, 



Mufcovy glafs, » 

 Mutilla, 



Myrmillion, • • 

 Myrobalans, 

 Myrrh, how produced, 

 Mytilus margaritifer, 



Nagyag, yellow ore of, 1 63 

 foliated grey gold of, 



Page 



Obfidian, * I 





82 



121 



60 



Oclohedrons, 



116 



105 



Oeltrus, 



m 6 



n. 6 



Oil of vitriol, 



97 



"5 



Olivia, • • 



119 



n. 6 



Opal, 



1 22 



n. 5 



Orpiment, yellow, 



151 



184 



Ounces, . * 



189 



197 



Oxyde of arfenic, 



7* 



193 



Oxygen, definition of, 



82 



------ gas* 



Oxygenated arfenic, 



84 



7 s 



163 

 165 



46 



Naptha, . 

 Natruni, 

 Natrum vitriolatum, 48, 100 

 Nautilus, • . 19 2 

 Necydalis, . . n. 3 

 Nepa, . » n. 4 

 Nefts of binjls, . 22 

 Net for catching water in feels, 3 

 infects when fly- 

 ing, . . 9 

 Neuroptera clafs, n. 5 p. 10 

 Nickel, . 136, 150 



native, - 150 



calx or oxyde of, 150 



kupfer, . 150 



Nitrate of ammoniac, 102 



. * lime, - 64 



magnefia, 58 



potato, 99 



foda, 1 01 



Nitrates, 99 

 Nitrate of potafh, * 99 

 Nitre or faltpetre, 99 



fixed by itfelf, 98 



. of magnefia, . 5 8 



potafh, , 52 



Notonecla, . , 4 

 Novaculite, . . 116 

 Ny&anthus, . 194 



muriatic acid gas, 



S3. 



Palm trees, kinds of, 19^ 



Panthers, * 189 



Papilio, ♦ * h. 4 



Parthenum, • . 136 



Peacocks, wild, . 191 



Pearl fpar, . 104 



Pearls, formation of, 193 



Peas, . . ig$ 



Pedra de cobra, ♦ 186 



Pehlvi, . • 178 



Petroleum, . 165 



Petrofilex, . 123: 



Prehnite, . . 126 



Phalaena, . . n. 4 



Phafeoli, kinds of, 195 



Phlogifticated air, 85, 92 



- gas, : - 85 



vitriolic acid, 97 



Phlogifton of Kirvvan, 

 Phofphate of alumine, 



baryte, 



lime, 



Phofphoric gas, 

 fpar, 



Phofphorated hy drogenated gas, 



8 3 



Phrygamia, . n. £ 



Pipe clay, , 112 



E e 2 Pitch- 



8 7 

 112 

 108 

 106 



IOJ 



