T H E J O U R X . 4 L O F I S D U S T R I A L AIVD E N G I N E E R I X G C H E M I S T R Y
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V d . 8, No. 6
MODIFICATIOKS: 1-In place of a rubber stopper (G) and glass tube as shown in Fig. I, i t would be more desirable t o continue the lead pipe down into the sink by means of a right angle bend 2-
