August 21, 19 19] 



NATURE 



485 



PLATE 



-COMPARISON OF THE TWO CLASSIFICATIONS. 

 Bulletin III. — Catalogue of 354 Stars. 



Argonian 



Alnitamian ^ ^'^'> 



Achernian ^3 B2 B5 ^^p B3/ \^P B8 K 



Aljiolian 



Markabian 



B8 B5 A 



762 



A Kp B8/> B9 

 12 I 12 



Sirian 



A A2 



24 20 



A3 A/ A2/^ 

 8 3 I 



A5 

 12 



Procyonian 



.J 



A A2 



2 3 



F5 F;> 



14 I 



A3 



2 



A8 



A4 



I 



F 

 3 



A 



1 



F5 



I 



As 



5 



I,, Q Qp G5 F F5 F8 KS;^ 

 y^- 13 2 6 2 I 2 I 



A8 



I 



K A8;> 

 6 I 



Arcturian 



K K/ K5 C2 G5 



Piscian 



Bulletin V. — Catalogue of 2S7 Stars. 

 I 

 Argonian 



Crucian 

 Taurian 

 Rigelian 



i Cygnian 

 Polarian 



Aldebarian- 



Antarian 

 NO. 



B Bi 

 I 2 



B9 



B2 B3 B5 

 2 9 I 



Alnitamian 



B2 B 

 2 I 



0^5 



I 



II. 



Y.p K5 G2 G5 M^ 

 I 2 I I I 



I K K5 K5/ 



I ■ 7 7 I 



M« M^ K5 

 17 5 3 

 2599, VOL. 103] 



Achernian 



Algolian 



Markabian 



B2 B; 



B5 B8 B9 

 2 5 I 



hp A: 



B5 

 4 



B5 li8 B9 

 I 5 2 



Sirian 



1" 



A Ap A2 

 25 I 12 



A3 A5 



B8 B9 

 2 I 



Procyonian-^ 



Arcturian 



Piscian 



A2 A3 A3/ A5 



F5 

 5 



F8 F8;> 

 3 I 



K G2 G5 

 29 2 9 



C5 



5 



F 

 6 



As 



1 



Gp 



I 



