HC.LME8) ILLUSTRATIONS 11 



Page 

 Plate LXVI. Specimen from celt shop, probably rejected on acconnt of 



defective work 1(13 



LXVII. Specimens illustrating the manufacture of grooved axes ■ 10-1 



LXVllI. Hannnerstoues fioui the celt shop near Lnrny 106 



LXIX. Hauimeretones from the celt shop uear Luray 106 



LXX. Perforated tablets of slate 108 



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



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



LXXllI. Mortars, pestles, and 8iuker( ? ) from the tidewater province.. 114 



LXXIV. Abrading stones from the vicinity of Washington 116 



LXXV. Hammerstoues from Potomac village-sites 118 



LXX VI. Surface of soapstone quarry, showing various phases of the cut- 

 ting operations 121 



LXX\'ll. Incipient vessels broken during the shaping operations 122 



LXXVIll. Series of forms showing steps in tlio steatite-shaping process.. 122 

 LXXIX. Quarry-shoi) rejects showing early stages of the steatite 



shaping work 124 



LXXX. Examples of nnlinished steatite vessels 124 



LXXXI. View of the Clifton <|uarry after cleaning out 127 



LXXX 11. Implements used in cutting steatite 128 



LXXXIll. Jlap and sections of the Connecticut avenue steatite quarries. 130 

 LXXXI\'. Map showing trenching of the ancient steatite quarries on the 



northern hill 131 



LXXXV. Surface of ancient steatite quarry exposed by trenching 132 



LXXX VI. Chisel-like implements used in cutting steatite 134 



LXXXVIl. Steatite-cutting implements of eruptive rock 134 



LXXX VIII. Fragment of a steatite quarry implement 134 



LXXXIX. Im]dements used in cutting steatite 137 



XC. Implements used in cutting steatite 138 



XCI. Mass of steatite partially cut out by means of stone chisels. .. 139 



XCIl. Grooved axes used in soapstone ((uarries 139 



XCllI. Rude grooved jiick used in (luavryiug steatite 140 



XCIV. Implements used in cutting steatite 140 



XCV. Pointed implements used in cutting steatite 140 



XCVI. Steatite pick made by sharpening a grooved ax 142 



XCVII. Grooved ax used and broken in a steatite quarry 142 



XCVIII. Grooved axes sharpened by flaking for use in quarrying steatite 142 



XCIX. Small articles made of steatite 145 



C. Specialized and partially specialized objects of steatite 146 



CI. Graded series of flaked implements 148 



CII. Quarry group in plaster set up on the Piny liranch site 151 



cm. Results of experimental flaking liy percussion and pressure.. 151 



FiGL'RE 1. General section across Rock creek and Piny branch valleys 32 



2. Section of the ravine, showing formations and position of iiuarries. 33 



3. Panoramic view of Piny branch quarry-sites, looking northward.. 34 



4. Section across bed of rivuK t at base of quarries 37 



5. Cross section at beginning of tlie first trench 38 



6. Cross section at the twentieth foot 39 



7. Cross section at the fortieth foot 40 



8. Section of bowlder beds exposed in quarry face 47 



9. Section exposed l>y trenching on outer angle of terrace 51 



10. First step in bowlder flaking 59 



11. Second step in bowlder flaking 60 



12. Fragment of rhyolite from the Potomac 74 



13. Supposed anvil stone and cluster of slightly shaped bits of rhyolite. 77 



