Manufacture of Boiler Iron

Join Our Community of Science Lovers!

On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.

The Secretary of the Treasury publishes a notice to the manufacturers of boiler 'iron, calling their attention to the provisions of the new Steamboat Law, which requires, " That all plates of boiler iron shall be distinctly and permanently stamped in such manner as the Secretary of the Treasury shall prescribe, and, if practicable, in such place or places that the mark shall be left visible after the plates are worked into boilers, wit.h the name of the manufacturer, the quality of the iron, and whether ur not hammered, and the place where the same is manufactu:ed," The Secretary says, in pursuance of the authority vested in him by this act, that, in fu-ture, all iron to be used in boilers of steam vessels must be clearly and distinctly stamped in not less than three places on each sheet or plate, as follows, viz" at two diagonal corners, at a distance of about four inches from the edges, and also about the middle of such plate or sheet, with the name of the manufacturer, and the name ot the place where manufactured, designating the latter by the name ot the city, town, or county, and also State.

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American