OUR EXCHANGK TABLE. 59 



know their own folks when they fly or spread their wings. 



See how the hind wing folds, like a fan. At each fold 

 is a rib. These ribs in insects' wings are called veins. 

 Notice that they are straight, or nearly so. Grasshoppers, 

 crickets, cockroaches and some other insects have these 

 stright veins in their wings, and so are called Orthoptera, 

 or the insects with straight wing-veins. 



Some of the grasshoppers you catch will have four hard, 

 sharp points at the end of the abdomen. These grasshop- 

 pers are females, and the sharp points are drills. The fe- 

 male grasshopper bores a hole in the ground for her eggs. 

 She holds the sharp points tightly together and pushes 

 them a little way into the ground. Then she spreads 

 them and removes a little earth. She does this again and 

 again, until she has made a hole nearly as deep as her ab- 

 domen is long. The eggs have grown in a nice, snug 

 case. She puts this case, eggs and all, in the hole and 

 leaves it. After a long time, usually the next spring 

 or early summer, tiny grasshoppers hatch from the eggs, 

 come out of the hole, and begin eating and growing. 



Our Exchange Table. 



The earliest miners and metal workers of whom we have 

 record were the Aryan people of Euro- Asian origin, who, 

 though of pastoral and arboreal habits, were familiar with 

 the metals and worked with them — at least with the metals 

 gold, silver and bronze. Chaldeans and Assyrians, as we 

 know from the cuneiform inscriptions which go back 3000 

 B. c, were undoubtedly experts in the use of metals. — 

 Mineral Collector. 



Dr. William C. Prime, who has been an extensive trav- 

 eller, has this to say of his favorite spot : "The grandeur 



