130 



BOYS AND GIRLS IN BIOLOGY. 



(Figs. 109 and 114), and last of all, in front come a 

 pair of joints which support the eyes (Figs. 109 



Fig. 114. 



and 115), and hence these are named .the optic pair of 

 appendages. Now let us begin with the eyes and go 

 back to the tail, to see how many pairs of feelers, jaws, 

 hands, feet, and paddles, the lobster owns. He has six 

 pairs attached to the head, eight pairs to the breast (tho- 



