210 THE NEW KNOWLEDGE. 



3. Achernian Stars. 



Predominant. Hydrogen, helium, asterium, oxygen, nitro- 

 gen, carbon. 



Fainter. Proto-magnesium, proto-calcium, proto-sili- 

 con, unknown substance, silicon. 



4. Algolian Stars. 



Predominant. Hydrogen, proto-magnesium, proto-calcium, 



helium, silicon. 

 Fainter. Proto-iron, asterium, carbon, proto-titan- 



ium, proto-copper, proto-manganese, 



proto-nickel. 



5. Markabian Stars. 



Predominant. Hydrogen, proto-calcium, proto-magnesium, 

 silicon. 



Fainter. Proto-iron, helium, asterium, proto-titan- 

 ium, proto-copper, proto-manganese, 

 proto-nickel, proto-chromium. 



6. ( ). 



7. Sirian Stars. 



Predominant. Hydrogen, proto-calcium, proto-magnesium, 



proto-iron, silicon. 

 Fainter. The lines of the other proto-metals and the 



arc lines of iron, calcium and manganese. 



8. Procyonian Stars. 



Predominant. Proto-calcium, proto-titanium, hydrogen, 

 proto-magnesium, proto-iron, and arc lines 

 of calcium, iron and manganese. 



Fainter. The other proto-metals and metals occur- 

 ring in the Sirian genus. 



9. Arcturian Stars. 



Predominant. Proto-calcium, arc lines of iron, calcium, 

 and manganese, proto-strontium, hydro- 

 gen. 



