PHYSICAL TESTS OF ROAD-BUILDING ROCK. 



49 





i-H 00-^OOt^i^ O0J05C0I>i000-^i-<0aTt<C<IOCCi-iC<)T-*C<lf-lO'* 



C^ C^ !-( <N CO (M (N <N(N 



CO r-C^Wt-iOOO OC0<N'^C0i-(I>-'*00I>-OO(M0i(N00I>-00O050i 



■^i-HlOCO»OOI>-cDOO:iGOOOCOOOOOiO':DcOCacO(NTrCOt-»COcO COt--t— **C^00I>-COOi00(N0000O0i'^0000i-lO*-H 



coost^cou^c^'ccotocoo6c6c<It^o>j:ic^oii-^ococoodoioio t>^c^ic^■rr*cit-^cdcoTtJ^^cooolOl^^lO(:olOcDlCQ6 



T^'^cicic4Q6^c6<oci'^^c6ioc^':oc^-rriocQcic6^<yit^t'^c6 —yi cococ4wioiot£>c4c^cor-lTHc<i»dcoc4oac^i-Hc4 ^ 



C^I>- 00O5'-*00t— OiOt-tOt-OiiOOi-rPCOOOt^cO CO'J'-^COfOCOr-^CflCOOO co 



coco OiCOCO»-liOC<ICSi^^cDCOCOC^i-i(N-^i-l-rri|-i COCOCQiOGOtNi-HCOiMrH C^ 



»MCO i0C<)C<)C00CCqvQC<IG0iOOGCiOiOG000iOiOCCiOC£:>00iO0sai»0C9»OC^00i0Q0iO CO-^-^-^Tjii-H-itrr^-nti-Tfi-t 



00"^ t^t^^^c^oo^^^o^-~o■■-^o:c^^^^I^!:ooooto^■lOlOot>■I>•t^<:o^^o^-- osgocooooococ/dgcoococo 



^ e3 ID O .3 



® m S 

 . . . <^ 3 2 



o o oS o 





O M 2 



o o 3 g o a, 





•«.'^.'^.=?.§§'«.'^'5-s£Q 



ssg 



-a e+s 





a c3 M 



03 M § 



m o a 





§ S a 



i 



Oi-^ .'HtoOi-cg'OtoO^OOOOOO 



<lb2r^ 



3 © S & p o3,S p dtHiS-rt'd '^'O 03" IE S'oS'O'O'OiS'dT! 



la -2 -I gsl fc fc §2? § a :-22.2 a :■§::: ::; 





:! O (j3 CD t! ® 

 2 .-y S^ 3 



S'l 



O O 0,2. ooooooooooooooo 



r>^obd'Sdooo"SciooS)OddddddddgMd6g,„„j , 



^T3 g)"^ gists -d-d a-d'd'd fl 13 ■« tJ -O -o -d t3 -O -d g g'^'d ^m m-d-d'd^i'd'd'd'd'd'd'd'd'd'd'd'd'd'd'd 



S :.S ifl ::: :"S :; :2 :::::::: :-n S : ^s'Ss :: :8 :::: ■■::::::::: : 

 iz; :z ;o ::: lo ;'. :o ::::::: : :oo . lopnrt : : :« 



!5 I^-I^zIcq' 



o § o ft!> 

 -d flis § g 



; ^ : o « 



.02 .mo 



3o d o3 Q <B 







■^ S^g a"^ a ^ ^-g-^i a'^-2 S'^'O ft-S g'O'd.g g^-d gS-d'd'd'd 



>iO • 





ODr-<ai04C305^H(MO-^'^OOCOC^I^^Hq300i^O.-HOt^r^t-^'^^'-^^HQOOTJHt^(NTr05COC^CDOO':DCDOi'-ic 

 rH CS lO T-H T-H r-l T-H t^ CD tH CD «:> Oi O C30 CO 00 GO '•J' C^ (IN N CS 00 C^ W N iO lH i-H CN rji -^ tji -^r lO L 



CO 05 05 -^ o r^ oi ( 



31693°— Bull. 370—18- 



