THE FLOW OF WATER IN WOOD-STAVE PIPE. 



33 



C^iocQco coco 



COOOO i-i-^ 



00 CO lO OS C^ t^ CO '^r TP Oi CO T-4 lO 00 COi-H COM' C^ 



i-Hc!cOlOCOrHc4 t^"^(NCOr-HO'oi COi-H t^TjJ ^ 



7'T77T7+ 77777+1 71" 77 + 



Tt* o CO CO 05 00 ^ i>- r- 05 lo lo -^ ■^ CO o t~-c^ co 



coTPOoiC5TPi-H ot-Iiocdcooa<N .-It-^ c^ioi »o 



777 iii+7iiii + i77 7i + 



cq CO i> OS i>- CO oo 00 OS CD '^" o' CO Osi ^^r os >o lO F- 



OSOOcOcOOOiOcO CvioOi-HOoOO i-Ht^ rlS,-H M 



I I 1 I I I I I I I t I I t It II I 



C^t^OOC^^NcO OOcOCOCOtPCOO Cfl O COK^ Cfl 



O 00 CO CD t-^ CO 00 O 00 I> 00 CO CD CD Oi CO i-H t-^ t-4 



7iiiii+7iiii+i i7 7i + 



t-- 1>- CD t^ o c^ OS o r^ TP lO r* t-- o iO 1-H i-H 00 F- 



OSod CD t^OSiO'CO TPi-Hi-Tc^Oi-Ii-i rHOS uOi-^ OS 



I I I I I I + 77777+7 77 77 + 



Tp.-tCO'^cDC^t^ l^<NasTt<cDOOS 0000 C^l-O CO 



r- 05 I— I CO lO OS OS CD O lO CD CO O O OS Tf CD CO W 



*'rHi-H^T-Hco CQcococoTTTpio i-Hcq c<ic<i ^ 



a> lO lO lO CD 00 lO 00 O CSI 00 N OO O t^ CD 00 O 1-t 



1© 00 O IM -^ t^ CD TT 00 CO CO O CD t* OC CO tP lO iM 



'•^^^^CO C^Jc^'cOCOtPCOtI* 1-hN c<i<N 1-5 



oo 



« O CO CD T-H O t^ CO t^ tP T-K U5 i-< lO t-i N I>- Os i-H 



r^ OS »-< CO CD o CO 00 c^ OS o 00 TP i>- rn co oo oo co 



• ' ,4 tH i-H (N 'ijl C^* CO CO -^i** ■^* Tp lO c4 c4 c4 c4 i-H 



Tpoooi-Hio-^ ooc^ooTPTpr^oi wco tpuo ■^ 



CO 00 O (N "'J* t^ I>- Tf 00 CO TP T-Hr>- 00 OOCO -^ '^ 1-H 



•'rH^i-HT-HCO «(NCOCOtPCOt3? t-Ic4 c4(N r4 



"^O-— 'C^'^OSt-i i>.trocooiocDco t^N uOt-» CD 



CD 00 O <N TT t- OS irti OS »0 CD CO 03 T-i 00-^ lO lO »-( 



•'^^'wi-^co* c^'ncocotpcoio tMN nc^' *h 



00 C- r* !>■ TP CO ^ O O OS oo "^ rH t-^ O C^ io 00 ^ 



r^ OS cq c4 t-H CO o t^ o o os c4 oo i^J cjscd coo co 



O O 1-H t-< W T-H CO O .-I rH o i-H C^ t-^ OO O .-H CO 



'TT lO '^ OS OS CS I> OCOO T-H t-H iOJt> I>00 00 OS CD 



»-Hco'odosost^^ ococdio'oscoo OtT OSCO OS 



OS OS OS OS OS O C*^ 00000(N.-l O OS OS O r-l 



CO CO •— I o 00 lo uo cs •-< OT dc'r- co *o r-- co ^co i-i 



CO CO CO CO C^ C^ "-H W C^ i-H i-( r-4 1-1 rH CS|(M M (N rO 



ooooooo oooooo - OO oo O 



OS TT OC CO lO. OS "tp t- CO 1-1 C^ CO »0 r-- co f^ y-i CD F^ 



<NCOCOCOCO(Mi-l COCOCOCO(Ni-l(N CO"^ TpCO i-l 



ooooooo ooooooo oo oo o 



CO -^ C^ t^T^ 00 i-( t-^ C^ t-- O OS oo rH OO OO CO O* 



CD OS -^ OS CD OS CS iO CD rf OS lO TP CD CD t— W CO -^ 



O O »-i i-H C^ CO CO I> OS CO CO Oi CD CD CO iO COCO .-H 



1-J ' * ^* r-H tH T-H C4 



c^ lo CO CO T-t 00 00 T-tt- lO o t-^ 00 OS cor- th to ^ 



oo CO Tn ch *— < OS CO 1— I oo N "^ 00 c^ CO imo coco r~. 



lO t- OS i-H CO CD O CQ lO ,-t t-i 00 O »0 coos 1-hC^ Cfl 



'''i-Hi-*T-H'^' c^'c^cococo'^'^ 1-Hi-J c4c4 1-* 



lO lO TP O r- O M OS CD 00 i-H "* 1-1 lO OSrp OtH I>. 



o 00 OS OS 00 OS CO lo ^ CO »o CO 1-H o CO 00 coo o 



coco^'iocDodi-I i-I?ocdcdoi-HTP i-Ico loco o 



C<I i-< T-H 1-1 tH C^ M IM T-H r-4 T-H 1-1 tH 



■sg®<B5w t^o-s^g -go ■go cS 



|g's^is |3§ii If If 5 



•rs^^B I ill 1^ i» I 



m m Ph fii W 



OOOCiCO .-I O tr-O^ 



+77 I ++ ++ 



TticD(NCO lOiO OOCS 

 ^OOO COCO t^io 



I + 



1 I 



tD'-llN'-l 00-* 0'<< 



+77 I ++ ++ 



00 00 CO t^ 



+77 1 



++ ++ 



OS i-t 1-1 C^ 050S tH CO 



"^ lO CD CD -^ O OS CO 

 OOOOtH OOOS 0000 



OS CO lO CD 00 CO 



1--0 



OOCO tHCO 



OOOS "^CO 



coco 



O C^ CO CO O t- COi-l 

 OOOOi-H 00 00 OS OS 



T-H CO -^ "0 00 00 o c^ 



OOOOi-* . . i-io 



■^^,-5 coco 



coco 



CO 1-^ 



CQ O O i-H cow (N CO 



CO lO 1— I CO 

 CD O --3 CO 



I** CD lO C^ 



O OS OS O 1-1 O 1— < c<» 



OOO i-IOOO ' 



OO 00 r- CD r- r- co cd 



0« W CS C<) (N CS 1-1 .-I 



oooo oo oo 



csr-ocsi-iooos 



oooooooo 



!>• r- CD Ttl oo iO CO 

 1-tCOCOCS 1-1^ 1-1 1-1 



oooo o o oo 



) CO oq CS CO CO CO c 



I CS CS CS CS CS CS c 



oooooooo 





5CD CS OS lOcO OS lO 

 ■ -i O CO CO lO CS t-- 



T-Hl-1 CSCS 1-1 T 



lOOCDr-lC^COO-^ 



t^t-cjst-ir-cocDT-i 



TPOOOCJSCSOt-CO 



' th th CS ■'j^ lo lo cd 



50S1-HCO 1-1 CS -^^d -«** 

 )00OST-H <3i OS i-l 1-1 1-1 



coco 1-1 



CDC^SCvji-OOOt^^CO 



coi— ir^cscDCSi-ir-. 



cd10c0cso4c0sc0 



thcsco-^io»oiocd 



^oor- o T-H 



^§g^ 



b S © S 



+3 W^ o 

 PQ 







So 

 o 



c 





^^^^ 



o 





® 03 



s 





O—' 









,i^ 





^bjD ® 



o 







fe 





?,rt^ 







S . o 



(S 



03 



11^ 









P5 





w 



M 



Pi s 



CD 1^ 



05 



•*NCOi-l ^(M IN .-I .-I ^« 



I CO ^* lO O t* 00 ^H 



•V CO Cfl I-l o Oi »H 00 1^ CO ic CO cq ^ c^ »-h 



<« ^ 



s s 





t-OO CS O T-H CS CO '^ lO CD 1 



OS O 1-H CS CO TT Lft CO r- 00 OS O 1-H CS CO-* 



■^rPrp-^ "rfi-^ tPtP tH lOiOuOiOiOi-OiOiO 55 lOCDcDcDcOCOCD cDCDCDcDt— b-r- t--l>- I>-I>- 



42463°— Bull. 376—16- 



