TABLE OF RESISTANCB] TO CRUSHING STRESS. O^V-fW 



' JUL 20 1942 



stone. 



21. 

 22. 

 2;J. 



24. Driiycott 



'2r>. 



26. 



27. 



28. Black Rock 



29. 



30. 



31. 



32. 



33. 



34. 

 3.5. 

 36. 

 37. 

 38. 

 39. 

 40. 

 41. 



Millstone Grit 



Old Eod 



(1) 

 (2) 



m 



W 

 (5) 

 ('!) 

 (7) 



(8) 



(10) 

 (11) 

 (12) 



(i;i) 

 (11) 

 (W) 

 (10) 



(2) 

 (3) 

 (4) 



(5) 

 (6) 

 (7) 

 (1) 

 (2) 

 (3) 

 W 

 (1) 

 (2) 

 (3) 

 (4) 

 (.'■>) 

 (1) 



(2) 

 (3) 

 (4) 



^^} 

 (2 



(3) 



(4) 



(5) 



Si7,(^ (>( Test. 



1" Cube 



2" Cubo 



Prism 2" x 

 2" Cube ." 



PriHm 2" X 



2" Cubo . 

 I'riam 2" x 

 2" Cube ." 



»» . 

 Priam 2" x 



2" Cube ." 



3" 



3" 



3" 



Uniformly oolitic in structure 



Saturated witli water 

 Dry 



Saturated willi water 

 Dry 



Frozen and thawed 1 times, wet 



>, ,, ^ 



■ „ H 



„ 12 

 12 

 12 



Dry 



Dark irregular streak . . 

 Uniformly close grained good 



Iry 



stont 



Cranked at 

 in tons. 



Soaked and dried 19 times. Line of weakness 

 parallel to bedding brought out by soaking . 



Left for 24 hours under 18 tons . . . 

 Largo, included fragments of limestone 



Shelly and crystalline ; not quite square 



Frozen and thawed 12 times 

 Strong and close-grained stone 



at base 



Not quite square . . . 



Not quite square .... 

 Frozen and thawed 12 times 



Close grained good atone 



; slightly notched 



. + 

 • + 



+ 



1 ton 



2-7.5 



l-9(i 

 2-9C 



H 



7-2 

 19 



7'33 

 11-17 

 10-17 

 10-40 



7-.'!:! 



7-.59 

 7-2,5 



liroko down 

 at in tons. 



1-1 



■77 

 1-1.5 

 3-01 

 S-41 

 3-3 

 4-13 

 2-91 

 4-5,5 

 3-U 

 3-30 

 3-42 

 3-83 

 4-25 

 3-75 

 3-07 

 25-19 

 21-28 

 19-95 



18-,5C 



21-98 



19-91 



19-5 



7-54 



G-3 



0-48 



9-13 



ll-()f) 



12-18 



12-93 



19-40 



14-22 



15-22 

 19-39 

 13-00 

 10-80 

 10-70 

 1200 



9-40 

 10-91 



9-30 



lil-ok(! down 

 in IhK. 



2,464 

 1,7-24-8 

 2,576 

 8,086-4 

 7,(;3H-4 

 7,392 

 9,251-2 

 6,518-4 

 10,192 

 6,966-4 

 7,392 

 7,650-8 

 8,579-2 

 9,,520 

 8,400 

 8,220-8 

 56,425-6 

 47,667-2 

 44,688 



41,663-4 



49,235-8 



44,5984 



43,700 



16,889-6 



14,112 



14,515 2 



20,451-2 



26,118-4 



27,9.55-2 



28,963-2 



43,,590-4 



31,8,52-8 



.34,082-8 



43,133-0 



29,120 



24,192 



23,968 



26,880 



21,190-4 



24,4,38-4 



20,832 



Notes. 



Irregular pyramid from base . . . 1. 



Fragments 2. 



3. 



Irregular Pyramid from base . 4. 



„ „ - - • ■'"'• 



,, ,, ,, top ... 6. 



,, ,, ,, base. . . 7. 



,,,,... 8. 



, . ' 9. 



10. 



11. 



12. 



13. 



Irregular wedge 14. 



„ 15. 



Collaiisod along streak Hi. 



Perfect jiyramid 17. 



18. 



19. 



Irregular pyramid 20. 



Two regular pyramids 21. 



,, fairly regular pyramids . . . 22. 

 liroko down two minut<is after load 23. 



Fragments 24. 



Irregular pyramid 25. 



26. 



Fragments 27. 



, 28. 



Very irr(!gular pyramid . . . .29. 



• - • • 30. 



.... 31. 



32. 



Fragments 33. 



Irregular splintery pyramid . . . 34. 



Irregular ))yramid 35. 



IJrolce to fragments unexpectedly . 36. 



Good pyramid 37. 



, ,, ,38. 



,39. 



40. 



.; 41. 



fJ-iylMol Bnildiwj Stones, lo face p. ll'i. 



