ARCHEOLOGICAL INVESTIGATION'S IN MISSOURI 



51 



Table 5. — Classification of chipped points, Renner site 



N. Not stemmkd: 



A. Leaf-shnped : 



a. Pointed at both ends. 



b. Pointed at one end. 



1. Convex base. 



2. Straight base. 



3. Concave base. 



B. Triangular: 



a. Straight base. 



1. Two side notches. 



2. Two side notches and 

 one base notch. 



3. Four side notches and 

 one base notch. 



4. Four side notches and 

 no base notch, 



b. Concave base : 



1. Two side notches. 



2. Two side notches and 

 one base notch. 



S. Stemmed: 



A. Contracting stem : 



a. Shouldered only. 



b. Shouldered and barbed. 



c. Neither shouldered nor 

 barbed. 



B. Parallel-sided stem : 



a. Shouldered oidy. 



b. Slionldered and barbed. 



C. Expanding stem : 



a. Shouldered only. 



1. Convex base. 



2. Straight base. 



3. Concave base. 



b. Shouldered and barbed. 



1. Convex base. 



2. Straight ba.se. 



3. Concave base. 



On the btisis of form, several types are recognizable (fig. 6; table 5). 

 Highly characteristic is a large point, with straight or curving edges, 

 expanding stem, and straight to convex base (SCal,SCa2). These 

 two types, closely alike, comprised approximately 60 percent of the 

 points found; if basal fragments and stems broken off at or just above 

 the shoulder are included, the proportion approaches 60 i^ercent. A 

 representative series is illustrated in plate 12, Or-h; the smaller forms 

 are relatively rare. Stemmed forms also include rare specimens of 

 SCbl (5), SCb2 (1), SAa (1), and SAc (1). In all, approximately 

 75 percent of the whole and fragmentary projectile points may be 

 classed as stemmed. 



Unstemmed points are here classed as variants of the NBa type, 

 although a number of specimens verge on NAb2 or NAb3. Charac- 

 teristically they have curved edges and a straight or sliglitly convex 

 base, with the maximum width 1 or 2 cm. below the base (pi. 12, l-^). 

 In length, in width, and also in length-width ratio, they closely parallel 

 the stemmed forms. By addition of notches and with other lesser 

 retouching along the edges of the blade, any of these pieces could 

 have been transformed into one of the typical notched points. Some 

 exhibit retouched edges; others have only primary chipping. I am 

 undecided, therefore, whether these types actually are finished points 

 or, alternately, represent roughed-out blanks from an early stage of 

 manufacture of stemmed projectiles. The latter possibility cannot 

 be arbitrarily ruled out on present evidence. 



An unusual type of which but a single specimen was recovered is 

 illustrated in plate 12, o. The edges are coarsely serrate, and lack the 

 secondary retouching found on most other points. The base is heavy 

 and bifurcate, with a shallow secondary notch at the end of each 

 arm of the Y. Surfaces are rough, and exhibit only primary flaking. 



