Testing Boilers.

다국어 초록 (Multilingual Abstract)

For several years engineers have been in the habit of employing the hydraulic test in proving boilers, and its use daily becomes more extended. We find, however, the many individuals are still opposed to it, arguing that if pushed too far it becomes an indirect source of danger; that if not pushed far enough it is useless, and that, as a rule, there are no possible means of deciding whether the test is or is not pushed far enough.