HcClean. 



Type 1, Div. la i 



Type I, Div. lb. 6 



Type 1, Div. lb. 7 



Type 1, Div. la 9 



vr. Pi'oc., Vol 62, Plate G. 



k Orion is 2.4 



ft Sforpii 2.9 



ft (an. Maj. 2.0 



ft Oiitanri 1-2 



ft Cruris 17 



Argus M 



(leveite Gas. 



/x Centauris 3 4 



k Argus 2.7 



/? (rueis 17 



Extra Lines 



Oxygen 



