60 Improvements in Physical Science (Jan. 
CLASS I. 
It consists of substances formed according to the principles of 
unorganic nature, that is, in which the compound bodies of the 
first order contain only two elements. 
A. OXYGEN. 
B. COMBUSTIBLE BODIES. 
Order I. Metalloids. 
First Family : Sulphur. 
Common .....60+.- Tithe) (Te ease Bare Soe s 
QERIGES 5010's esta ls og omni Sulphurous acid .........- $ 
Sulphuric acid .........0.. s 
Second Family : Muriaticum. 
OXMES A. wees cece MMUTIALIC"ACIO "selene ane'e ele M 
Third Family: Nitricum. 
Suboxide .......... AZOCE eee cae cicie ee sien sie!s N 
Fourth Family: Boron. 
MORTE occcsecsiccts IBOFACIC SCI icoiaetc eis sale esa B 
Fifth Family : Carbon. 
Common .......... Diamond........+..+ atta 
Anthracite 
MOXTUE Pree cse orcice « AOdrbONiC ACA 's Neuere cese's c 
Sixth Family: Hydrogen. 
Sulphuret .......... Sulphur, hydrogen ........ 2H +5 
Carburet .......... Carbur, hydrogen.......... 2H + C 
OxIde i oe on ciafeocistate WWaLEK Ue cjente\aelelaaiestlaaneig .2H+0 
Order If. Electro-negative Metals. 
It includes those metals whose oxides in combination with other 
bodies rather perform the office of acids than of bases. 
First Family : Arsenic. 
Natives ceo titabiects Native arsenic ........ neler 
Sulphurets........ Realgar 
Orpiment 
Oxide -. 33.00 Maicee (PALEEDIC TOW EKS ‘etc'e Cais sat » ox “As 
Second Family: Chromium. 
OME es 6 Sails vials ClromGcre 25 cece we vee Ch? 
