The non‐magnetic gas engine of the “Carnegie”

The construction of the non‐magnetic vessel, “Carnegie”, for the Carnegie Institution of Washington, to be engaged in ocean magnetic surveys, presented various interesting mechanical problems. Especially so when it was decided to equip the vessel—primarily a sailing one—with sufficient auxiliary power to drive her, in calm weather, at a speed of about six knots. Of the various types of motors available—steam, gasoline, gas producer—investigations made by the architect of the vessel, Mr. Henry J. Gielow, of New York City, first with regard to the initial cost from a non‐magnetic standpoint; secondly, as to cost of maintainance, and thirdly, with reference to the possibility of obtaining practically everywhere the fuel to be used, resulted in the selection of the third type.