XII REPORT OF THE BUREAU OF ETHNOLOGY 



Page 

 Plate XXXVI. Specialized quartzite blades, probably in the luaiu projectib' 



l>oints, from Potomac village-tjites (iO 



XXXVII. Specialized quartzite blades, probably in the main arrow- 

 points, from Potomac village-site.s 60 



XXXVIII. Series of forms illustrating progressive steps in the manufac- 

 ture of arrowpoiuts from quartz pebbles 63 



XXXIX. (Quartz blades showing slight traces of specialization 64 



XL. Specialized quartz blades, probably in the main arrowpoiuts. . 64 



XLI. Specialized quartz blades, probably in the main arrowpoints. . 64 



XLII. Quartz arrowpoints of eccentric shapes 64 



XLIII. Selected forms illustrating progressive steps in shaping rhyo- 



lite implements 67 



XLIV. Unspecialized rhyolite blades, mainly from Anacostia village- 

 Kites 68 



XL\'. Specialized rhyolite blades, jirobably largely knives and 



spearpoints, mainly from Anacostia village-sites 68 



XLVI. Specialized rhyolite blades, probably largely projectile points, 



mainly from Potomac village-sites 70 



XLVII. Rhyolite arrowpoints, maiuly from Potomac village-sites 70 



XLVIII. Selected forms illustrating progressive steps in the shaping 



of leaf-blade Implements from argillite 72 



XLIX. Sharpened bowlders from Potomac village-sites 74 



L. Sharpened and battered bowlders from Potomac shell heaps. . 76 

 LI. Rude axes made by sharpening and notching quartzite bowl- 

 ders by flaking, from Potomac village-sites 78 



LII. Rude ax-like implements from Potomac village-sites 80 



LIII. Rude axes or picks made of <[uartzite bowlders sharpened aud 



notched by flaking, from Potomac village-sites 83 



LIV. Slightly modified quartzite bowlder.s used as implements 84 



LV. Series of specimens illustrating progressise stages in the 



shaping of celts by fracturing, battering, and abrading 86 



LVI. Group of celt-axes from the tidewater regiou 89 



LVII. Series of s])ecimens illnstratiug progressive stages in the 



shaping of the grooved ax 90 



LVIII. Outlines of grooved axes illustrating range of form 92 



LIX. Group of grooved axes from Potomac-Chesapeake village-sites. 94 



LX. Flaked specimens illustrating the rejectago of celt making .. 96 



LXI. Flaked specimens illustrating the rejectage of celt making .. 9G 



LXII. Specimens illustrating advanced step in celt making 98 



LXIII. Specimens illustrating advanced step in celt making 98 



LXIV. Specimens illustrating breakage in celt making 100 



LXV. Specimen illustrating roughed-out celt, very thick at lowcrend 100 

 LXVI. Specimen from celt shop, probably rejected on account of 



defective work 103 



LXVII. Specimens illustrating the manufacture of grooved axes 104 



LXVIII. Hammerstones from the celt shop uoar Luray 106 



LXIX. Hammerstones from the celt shop near Luray 106 



LXX. Perforated tablets of slate 108 



LXXI. Winged ceremonial stones from the vicinity of Washington.. 110 



LXXII. Pitted stones and mortar from tidewater village-sites 112 



LXXIII. Mortars, pestles, and sinker( ?) from the tidewater province.. 114 



LXXIV. Abrading stones from the vicinity of Washington 116 



LXXV. Hammerstones from Potomac village-sites 118 



LXXVI. Surface of soapstoue quarry, showing various phases of the 



cutting operations 121 



LXXVII. Incipient vessels broken during the shaping o))erations 122 



