190 NATURE-STUDY LESSONS. ■ 



star of the Big W. Repeat the experiment until you 

 can make a map showing both groups and the North 

 Star in their correct relative positions. 



13. About 10 p.m. near the middle of January, and 

 8 p.m. near the middle of February, in the middle of the 

 sky towards the south, you can see that fine constellation 

 called Orion, or the Giant. Observe this group night 

 after night until you can answer the question — Does 

 Orion come directly south of us at the same time every 

 night? If not, is it earlier on each night than on the 

 previous one? Is it later? 



The older classes may be able to discover the reason for the correct 

 answer. 



14. (a) Not far north-west from Orion and nearly 



overhead at 8.30 p. m. in the first week of 

 January observe a beautiful little group of 

 stars — the Pleiades — sometimes erroneously 

 called the Little Dipper. 



((5) Count the number of stars visible in this 

 group and make a map showing them and 

 the constellation Orion. 



The bright star between the Pleiades and Orion is the Bull's Eye. The 

 V of which it forms a part is the Bull's Head. 



15. (a) Directly south about 9.30 p.m. in the first 



week of May, observe four stars forming 

 a square. The ancients called this group 

 the Raven. 



(3) Trace a line from the North Star to the Raven. 

 Through what part of the Big Dipper does 

 it pass ? 



