Point Type: Jack's Reef Associated Date: 2000 - 1200 B.P. Morphology: Corner Notched Length Point: Ave: [ 39 +/- 8 mm] Range: [ 25 to 57 mm] Example: [ 34 mm] Width Point: Ave: [ 29 +/- 7 mm] Range: [ 20 to 47 mm] Example: [ 26 mm] Point Ratio (Width / Length): Ave: [.75 +/- .16 ] Length of Base: (Shoulder to Base) Ave: [ 8 +/- 2 mm] Range: [ 4 to 12 mm] Example: [ 10 mm] Width of Base: (Maximum) Ave: [ 24 +/- 5 mm] Range: [ 16 to 40 mm] Example: [ 24 mm] Depth of Notch: Ave: [5.2 +/- .04 mm] Base Length/Point Ratio: (Length of Base / Length Point) Ave: [.21 +/- .04 ] Base Width/Point Ratio: (Width of Base / Width Point) Ave: [.82 +/- .14 ] Base Ratio: Ave: [.35 +/- .09 ] 1. Short (<= 0.7) (Base Length 2. Proportionate (> 0.7 & < 1.3) / Base Width) 3. Long (>= 1.3) Base Form: 1. Convex 2. Straight 3. Concave (Subjective) Notch Ratio: Ave: [.18 +/- .03 ] (Depth Notch / Width Point) Blade Ratio: Ave: [1.1 +/- .2 ] 1. Lanceolate (>= 2.0 mm) ([Length Point 2. Isosceles (< 2.0 & > 1.2 mm) - Length Base] / Width) 3. Equilateral (<= 1.2 mm) Blade Curvature: Ave: [4.1 +/- 1.2 mm] 1. Very Convex (>= 5 mm) (Cord height of curve 2. Convex (< 5 mm & >= 2 mm) from Shoulder to Tip) 3. Straight (< 2 mm & >= -2 mm) 4. Concave (< -2 mm) 5. Mixed (< -2 mm & > 2 mm) Shoulder Angle: Ave: [ 60 +/- 11 o] (Angle of Shoulder from Notch Center to Shoulder to Tip)