OF EDUCATION 57 



the sori growing very near the margin of the pinnae. 

 The veinlets are forking. 



11 The Aspidium marginale grows on rich hillsides, 

 and between rocks in rich soil. It is found in all the 

 states east of the Mississippi river, excepting Florida. 

 It also grows in Canada as far north as fifty-two 

 degrees north latitude, and as far west as Lake 

 Winnipeg." 



Titanium Ork. 



"This is a very sunny, beautiful day, warm, and 

 very clear air. The wind blows very gently toward 

 the east at the rate of about three or four miles an 

 hour. The sky is of a bright shade of blue, and is 

 partly covered with stratus and cumulus clouds. We 

 had a very pleasant recess out today, and when we 

 returned we had our second lesson on minerals this 

 year. The subject was Titanium ore. 



" This is a very pretty mineral when broken, but on 

 the outside it is rather common and plain looking, as 

 the colors are dull. When it breaks it has sharp 

 angular corners and sparkles a great deal when held 

 in the light. In one hundred grains of Titanium ore 

 there are sixty-one grains of Titanium, and thirty- 

 . nine grains of oxygen. Titanium is a metal nearly 

 as valuable as gold, and it crystallizes in cubes. It 

 is very rare, and very few people know how to obtain 



