84 THE NEW METHOD 



and dark brown color. The endocarp, or inner shell, 

 is very hard and bony, and the nut resembles the 

 hickory nut. The name that is commonly given to 

 the hickory nut is walnut, but that is not correct. 

 The hickory nut is much smaller than the walnut. 

 The walnut is about two inches in diameter, and four 

 or five inches round it every way. It is quite heavy." 



The Oxide of Aluminum. 



" This is a beautiful day,, warm and sunny. There 

 are a very few stratus and cumulus clouds in different 

 parts of the sky, and they look like banks of snow. 

 The sky is of a delicate shade of blue, and there is 

 quite a rough wind blowing, making it very dusty. 

 There has been no rain for more than a week. The 

 grass is quite green, and the crocuses look very pretty 

 mixed with it. There have been a few may flowers 

 brought in from the country for sale, but they are not 

 plenty as yet. The robins have been here for about 

 a week. I attended a very beautiful concert last 

 Friday afternoon, which I enjoyed very much. We 

 studied a mineral to-day called ruby sapphire. 



"This is a very beautiful and interesting gem, 

 commonly called ruby. A ruby from five carats (or 

 twenty grains) upward is worth more than a diamond 

 of the same size, but small diamonds are worth more 

 than small rubies. The degree of hardness of ruby 



