390 NATURE-STUDY REVIEW [14:9— Dec, 191S 



North 



-a \ „ . - ' 



Twins 

 S 1 fb/h* * * Castor 





Cajx//a >|» ffeiadee 



» Hyades . ^ 



*-* 



♦ \ » 



\ / ^-"l" 

 Sinus w^ ' 



Diagram IV. Showing the relations to each other of The Big Dipper, Pleiades, 

 Hyades, Capella, Twins, Orion — and the Dog Stars 



