140 FOREST PRODUCTS 



Weight 

 Per 100 Sets 

 19! in. heads 55 lb. 



20 in. heads 610 lb. 



21 in. heads 675 lb. 



i\\ in. heads 7 10 *b. 



22 in heads 755 lb. 



23 in. heads 840 lb. 



23! in. heads 890 lb. 



24 in. heads 93 lb. 



GRADING RULES 



The following grading rules were adopted by the National Slack Cooperage Man- 

 ufacturers' Association on May 14, 1915. 



Staves. 



1. Elm and gum staves 28^ in. and longer shall be cut five staves to if in. in thick- 

 ness. 



2. Cot ton wood and basswood staves 21^ in. and longer shall be cut five staves to 

 ijf in. in thickness. 



3. Elm, gum, cottonwood and basswood staves 24 in. and shorter shall be cut six 

 staves to 2 in. in thickness. 



4. Hardwood staves, oak, beech, and maple 28^ in. and longer shall be cut six 

 staves to 2\ in. in thickness. 



5. Hardwood staves, oak, beech and maple, 24 in. and shorter, shall be cut six 

 staves to 2 in. in thickness. 



6. White ash staves shall be cut five staves to 2$ in. in thickness. 



7. No. i staves shall be of uniform thickness, free from knots, slanting shakes, 

 dozy wood, badly stained with black and blue mildew, or other defects making stave 

 unfit for use in a No. i barrel. 



8. Meal barrel staves shall be free of slanting shakes over i| in. long, knot holes 

 and unsound knots (but sound knots not over f in. in diameter shall be allowed), and 

 shall consist of good, sound, workable staves. Moderate stain, mildew or discolora- 

 tion no defect. 



9. Mill run staves shall consist of the run of the knife, made from regular run of 

 stave logs, and shall contain 40 per cent or more of No. i staves. All dead culls out. 



10. No. 2 staves shall, unless otherwise specified, contain the meal barrel grade 

 and be free from dead culls. Mildew and stain no defect. 



11. Standard bilge on staves, unless otherwise specified, shall be as follows: 

 18 in. to 22 in. in length both inclusive, \ in. bilge; 23 in. to 28^ in. in length, both 

 inclusive, f-in. bilge; 30 in. in length, f-in. bilge; 32 in. and 34 in. in length, f-in. 

 bilge. 



12. Standard quarter shall be 9 in. for flour barrels and 8^ in. for sugar barrels. 



13. No. i staves longer than 24 in. shall not be less than 2 in. nor exceed 5! in. 

 in width, measuring across the bilge. No. 2 staves of same lengths may be from 2 in. 

 to 6 in. in width. 



14. All barrel staves 28^ in. and longer to average in measurement, after being 

 jointed, 4 in. per stave or 4000 in. per thousand staves. 



