Prim-aval Man in the Valley of the Lea. 133 
500 implements. After my localities were published many 
other geologists and archaeologists sought after these weapons 
and tools, and now I know of at least 400 other examples in 
different collections. The smallest and lightest implement 
Fig. 19.—Ovate implement, one half actual size. 
in my collection is fig. 17. The largest (formerly No. 409 in 
my collection), now in the collection of Mr. John Evans, 
measures 9 inches by 5, and weighs 2 pounds 13f ounces. 
This implement, here illustrated one half actual size (fig. 19), 
