Photo hy R. L. Coffin. 



Fig. 22. — Hubbardston. Blade medium size, folded (A), reflexed (B), and waved 

 (Cj; serrations rather sharp and distinct, rather irregular (D). 



Photo by R. L. Coffin. 



Fig. 23. — Grimes. Blade medium size, folded (A), reflexed (B), and waved (C); serra- 

 tions sharp, regular and distinct (D). 



