146 



BOYS AND GIRLS IN BIOLOGY. 



and dark bands (Fig. 124). These are what are called 

 striated or steiped muscles, and the most of yours are 

 marked in the same way. The striped muscles are 



Fig. 124. 



Striped Muscle. 



moved by the will, the unstriped are able to move them- 

 selves. You can trace white nerve-cords leading from 

 the nerve-bunches (ganglia) to the muscles ; they are 

 very large, and because they make the muscle work they 

 are called nerves of motion, or motor nekves. We do 

 not know just how many senses the lobster has : he 

 acts as though he had the whole five. We do know 

 that he has seeing, hearing, and feeling, because we 

 have found the eyes, the ears, and the feelers. He seems 

 to have the taste of an epicure, always preferring his 

 meats " high ; " though he has no tongue, hence he 

 must taste with the lining of his mouth and gullet. It 

 appears he can smell too, else he could not always be 



