...sufficiently so, and sometimes not at all. 38. The injury done to the stern of a ship by the shake of the screw is a result much to be dreaded in a general...have not yet been made to ascertain the effects of long continued screw-propulsion at full speed. Such experiments should therefore be made and continued...

...than by the ordinary method. Some, however, deny that the result is steel, or iron, of good quality: and a sufficient number of experiments have not yet been made, to decide the question. 538. The persalts of iron, have a more or less reddish colour. Compounds of the...

...than, by the ordinary method. Some, however, deny that the result is steel, or iron, of good quality: and a sufficient number of experiments have not yet been made, to decide the question, 537. Tests for Iron.—The protp-salts of iron have a greenish colour : and, by...

...of the disadvantage, or to provide a remedy. " The injury clone to the stern of a ship by the shake of the screw is a result much to be dreaded in a general...experiments should therefore be made and continued a I'ovtrance with all classes-of vessels, more particularly steam frigates, block-ships, and the first...

...disadvantage, or to provide a remedy. " The injury done to the stern of a ship by the shake of tlje screw is a result much to be dreaded in a general...experiments should therefore be made and continued à l'outrance with all classes-of vessels, more particularly steam frigates, block-ships, and the first...