TESTS OF ROAD-BUILDING ROCK IN 1916. 



S3 5 



i^C5f~eocoa500»o 



T|IOJl>MSOOt-HNt-0!rt 



MOWOt^f-r»COMOO«N 



iooooooioooioioiaioooocDGo 



HTfoOOOOOrtMHOOOISm 





cor~cN'*t^cococo<NT-ir-~oot^ 



lOCO00t--t-~*OlO»OlO*^fH00CN 

 I--CDr~COCC>cOcOC©<OCOCOCOCO 



©ioioo 



00 (MOO 00 





>si2 rt 13 13 T3 T3 T3 -rt 3 



SoSof^o 



m :m 



I 



w 



(OCOO^NOIOHMOJO- 



~h oo i-~ ~h ^ ^ io «o lo c/: 

 1 t-o«t — - " - 



ItOCOtOtDQOOOi 



OOOHOOOIOJOJOOOO 



81335°— Bull. 537—17- 



CO-*COCN>Oa>COCNeNi-<^< 



£Nt-~»OCNCOi-HC©»OlOf~cO 

 CN rH C5 rH t-H r-t r-l ■"! 



MONMOMO lOOM 

 OS 00 00 G3 CD 00 t^ _ CO E^ »o 



- OJ O Ol i-i Oi 00 rH CO 



i-H00fH<OCNf~C£>-* 



. oi co co co ■* -<ck co c4 



tMNtO«NO"*mNO(N 



if tTf i— iio^iOiOiONC?! 



) oo oo oo r~ oo r- c© r~r*-*o 



-dtd.S 

 d 2tJ 



OSS • ■ 'O' 



M« : : ip- 



so O O Op o o o o >, 



(J''0 "O" T3 T3 'O £j 13 T3 ^ CD 



iOt^cTJiOCOt^C3^00ai»HOO 

 lOtOmNNNCOOOOO^OO 



ooooooaicscsooaiasooo 



cj 3^ o Tj '?i ji ffi oi ai o oi 



G? 



©r- 



00 00 





