14 The Saginaw Valley Collection 
to that of the cache specimens. There are several outcrops of 
this rock within a mile, especially along the beach to the west. 
In this cache there were some blades of peculiar form, having a 
straight beveled edge on one side. It seems probable that this 
was caused by flaking the pieces for turtle-backs from a round 
concretion. ‘The first flake removed would be symmetrical, but 
each of the succeeding flakes, if the material were used without 
waste, would have one side beveled where the one before it had 
been removed from the nodule. Not all of the flakes had been 
subjected to sufficient chipping to remove the signs of this bevel. 
- | 
W. Orchard, Photo. 
SEGMENT OF NODULE, RUDE BLANK AND CHIPPED POINT. 
From the surface of the Esterbrook Village Site. 
About ? Naturai Size. 
More or less evidence has been found of the existence of a 
number of village sites, burial-places, mounds and prehistoric 
battle-grounds from Bay Port southward along the shore of Sag- 
inaw Bay, on the western shore of the bay and along the lower 
course of Saginaw River. There are Ojibwa traditions also 
which tend to confirm the archzological evidence. From such 
sites the quantity of material in this collection is not sufficient 
to warrant a detailed description of it in this place. This, how- 
ever, is given in a summary of the Archeology of Saginaw Valley, 
Michigan, published in the American Anthropologist beginning 
with Part II, 1901. The fragments of pottery, arrow-points and 
