LESSON I. 



carefully exercise your different senses upon 

 them mark the various parts of their bodies 

 consider to what use each part is likely to be 

 destined and reflect upon what you know of 

 their habits. By using well your sense and your 

 judgment, you will be able to find out much for 

 yourselves. When you are at the sea-side, or 

 out at sea, you may collect facts illustrative of 

 the history of these animals. 



Child. That would be exceedingly interest- 

 ing. 



Teacher. Yes, it would ; but you need not 

 wait for such opportunities. Rivers, and even 

 the garden, will afford you specimens for obser- 

 vation : but what have you now to do 1 



Child. To examine the animals before us, to 

 use our senses upon them as we did in our les- 

 sons on objects, to name their parts, and the 

 uses of their parts as far as we know them. 



Teacher. Yes ; I wish you first to observe 

 these creatures attentively ; and that you may 

 discover readily what is peculiar to them, you 

 must in your own minds compare their qualities, 

 parts, and habits, with what you know of other 

 animals. First, however, tell me some qualities 

 that appear to you to be common to all the mol- 

 lusca. 



Child. Their bodies are soft, fleshy, moist, 

 nd cold. 



Teacher. Yes, you remember their name is 

 given to them from their s6ftness. Observe 

 also the action of a snail when an enemy 

 approaches. 



