Walks with the Children. 



FIG. 39. QUARTZ CRYSTALS. 



OUTLINES OF LESSONS ON THE THINGS COLLECTED DUR- 

 ING THE FIRST WALK IN SPRING. 



I. Quartz. 



Yesterday we found some very pretty pebbles and stones 

 when we were walking. Here is a stone that Jessie found. 

 It is clear, like glass. Charlie may take it out and break it. 

 Will it scratch glass ? Wood ? 

 Iron ? Zinc ? Tin ? Find out by 

 having them try it on the window, 

 the floor, the stove, the zinc under 

 the stove, and their dinner-pails. 

 It is quarts. Sometimes we find 

 quartz in very beautiful forms, 

 like Fig. 39. These pebbles 

 were once so formed, but they 

 have been worn round. Here ib a 

 milky one. Did any of you find 

 a pink one ? We call that rose 

 quartz. And here is one with a pale purple hue. It is 

 amethystine quartz ; but that is too big a word for you. We 

 will call it purple quartz. Now write on your slates what 

 you can of quartz. 



II. Bark. 



Look at this piece of bark. Who can tell me what it is ? 

 What is its color ? Does it cut easily with a knife ? Is it 

 tough or tender, rough or smooth, thick or thin ? Can 

 you peel off layers of it ? Can you strip it up in fine pieces 

 (threads, fibres) ? Does it smell ? Compare the bark in 

 question with birch, oak, pine, grape, cork, etc., etc. The 

 teacher should collect many varieties of bark, to facilitate 

 comparison. 



III. Pine-needles. 



Here are some of the pine-needles that we found the 

 other day. Are the needles put on singly or in bunches ? 

 How many needles are there in a bunch ? See if all 

 bunches contain the same number of needles, How long 



