ged than that adopted by upon this point. We have, however, this week to present to ber tested by hydraulic pressure, 67. The whole number of the Transatlantic telegraph companies. their consideration another improvement of this character, defects discovered aro 512, only 29 of these, however, are… … grooving, 7 ; water gages out of order, 20 ; biow-out appara- November with that part of the British Indian telegraphic tus out of order, 6 ; safety valves over-loaded, 31—4 danger- system which is to be laid between Aden and Bombay. ous (three of these last were corroded fast in their seats, show-…
Patents · Iron · Tuns · Inches · Heat · Cable · Sulphuric acid · Specific heat · Practical treatise · Scientific American · Sulphurous acid · Wrought iron · Steam boiler · Woolen cloth · Antedated october · North german
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