PHYSICAL TESTS OF EOAD-BUILDING EOCK. 



43 



lOTt^t^-^Tfii— ItH »Oi— I*0 ■^CO"^'^ 



Tjnooco£^(N<:oTfHTji<:ocJO>ooo»0'o 



CO* O M^ CO '^' Oi 00 CO C^* "^C (M* 00 1^ GO lO 



t-OOOtO'T'i-lCD'r'GO-^iN l:^(MOOi 

 ■^ CD (N 1-H 1-H C<i TT r-I CO c4 »0 ^ T}< lO lO I> 





OiiONOiOiO<NcOCOLO-S^OO(NCNOOiO 



-<GQ 



^ ^ .-e ,o rQ 

 n ^^ o tuob£ w 



on 'ID 'SsHkTtH^-^O 



W § o lu'rt o 



35 



3^ 1^ ;.&.g ;» ^§^- :? 



pQo :«^i :phf^ :« iraS 







*MOC<I"^OOOTt<COCDt^T-<t^i-HOi'* 



CO ^ ^ CO 1* -^ 1— I I 



)."^ <M (M "^ O O O (M 



lOO-^r-T-HcoTrOiOi-^-^cvjoocooito 



03 tH W CO tH CS C^ l> 00 W C^ r-l lO C^ lO 



lOClCI t^ O 1-H <N 1^ 'rf i-H 



»OOCO^ COiOO 



COCOr^COt^iOiOcD-rtHOOi 

 CD CO rH rH (M* CD* Oi l"^ rH* •^* 00 



O00T-<OOr-<CDO(NOr- 

 Oi (M Ci CD CD O -r T l-- O lO 



O CD* ■^* i-H ' r-I CO IM* 1-* -T^° i-H* 



<MO(NrHOJcoos(Ni-icr5":i 



CD^OCDCOCO»O»-OCD00i-HCD 



III. 



III! 



C£ffeflg.q_a 



b9« 



ass 



■ '-' ^ ^ (=1 



: O) C O 9 



+^3 ;^ c3 ' o • S S o 





ootNNOi-c'^or^r-i-t 



CjSOi-HCO'Tt^-'^r-IOOOSOr^ 

 i0Q000»0<NWt0O00c000 

 C^OcOtPOOOOt-HCO^cOiO 



,-(OiCOQO(MCDtD 

 C0C0C0»O»0'*'*rO 



00-^t< lOCO O500 



CD* 't^OI* lOCO 



tHCOt— tcOCDOOCOiO 

 00 ■^" CO -^' '** O 00 l-'^ 



Oi OO CO CO t-- t^ 00 Tji 



'^' 00 CO Oi 00 CO* -*" »o ^ 



•OiOCSliOcOOOiCiiO 

 CDcDCOCDiOCOCDCO 



' o O O ^ "w J 



<i^A' 



„ JoofeOi3§ 



•Ho ° o d ^ Pi 

 i-^(Mcqcccococoo 



