(A-/ i)\i)//V(, ri.txis i>>i< I ly'i-.iiixt; (iirsixfi i-oi.is 2?7 



lf\rl v\vi\ [hi<uy}\ tlir ari-a i>l' llu' oix-iiiii^ ,it lliis Irvrl is soiiu-wImI 

 snialliT than llu- ari'a of tlu- huttoiii of ilu- Iri-.ilin^; tank. 



SiiitaMi' railiiij^s havi' l)irn prnvidcil arotiiul all parts of tin- [iLilfonn 

 III proti'i't till- platlonn ni.m. 'I'hry arc siihslantial i-iu)iii;li to proltTt 

 till- i)()frat(ir and \i'l lU-xilik- i-noiiijli to coinpi'iisate for the irri'^iiiar 

 sections of poll's which niav lie aji.iinsi ilicin. 



I 



TVNKS 



As was nu'ntiorH'd al)o\c, in so far as practicahlc the tanks for the 

 various plants are made in nuiitiples of standard units. The treatinj^ 



KIk- i^ -("onrretc Foundation and I'rotecting Walls for Treating Tanks 



tanks for the smaller plants are 11 feci long and 5 feet G inches wide 

 with t) inches in each end of the tanks taken up by the vertical radia- 

 tors. These tanks are of proper size to treat y^ carload of poles each. 



The larger plants are provided with treating tanks, each of which 

 will easily handle one carload of poles. These tanks are 1.") feet 

 long. 8 feet wide and 9 feet 8 inches deej) in the clear. 



Some idea of the sizes and arrangement of the treating tanks can 

 be had from the excavation for them shown in Fig. 24. Kach of the 

 raised levels shown, will su|)port the bottom of a tank while the jiits 



