Lecture Tables. 



11 



JH 







JS 



C5 

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i 



X 



50,003, 50,019, 50022. Set of 8 Labial Pipes (ciiloni: s?ale). 1 : 15. 



50 019. 1 : 14. 



. s. d. 



'15. Low Pressure Water Pipe Line, with one tap Extra price 0. 14. 



For the above, self-filling reservoir Xo. 50,101 or overflow pipe No. 50,102 is necessary. 



5i i.i 1 1 (i. Steam Piping with Jenkins valve cock Extra price '-. 1. 2. 



5II.U17. Pneumatic Trough, lead, built into a solid wood box, with inlet, outlet, lead valve and overflow 



Extra price as against zinc trough 0. 18. 

 .)ii.nl8. --The same, of stoneware, with inlet and outlet, lead valve and overflow. 



Extra price as against zinc trough 1. 0. 



5n. HI!). Copper Pneumatic Trough, can be lowered; 50 cm. in length, 30 cm. in width, and 20 cm. in height, 

 with plate glass <li>r- (see figure), copper bridge, water inlet underneath, overflow and eduction 

 valve Extra price as against zinc trough 8. 0. 



Cl. 2, 340. 



