Polytechnic Association Proceedings. 907 



foundery, aud wholly uuiiijured." Mr. William J. McAlpine, a 

 distinguished American engineer, says, that to resist corrosion, cast- 

 iron should be hard, of an even, close grain, and with its carbon 

 intimately combined, and not in the form of graphite. Impure, 

 soft, foundery iron will coiTode rapidly; close-grained gray iron 

 will resist corrosion for a long period, while white iron, of good 

 quality, is nearly imperishable. 



ELECTRICITY 1]^ MOLTEN IRON. 

 Mr. A. H. Fleury said he had lately r^ad an account of the use of a 

 current of electricity passed through molten iron in the process of 

 making steel, during some successful experiments made in France. 

 The plan cannot be claimed as original by this experimenter, for he 

 had done the same thing six years ago in Pennsylvania. 



THE LATE SAMUEL H.MAYNARD. 



Dr. Feuchtwanger introduced resolutions of respect to the 

 memory of the late Samuel H. Maynard, for many years an active 

 member of the American Institute, aud a regular attendant at the 

 meetings of the Polytechnic. Mr. Maynard had never been entirely 

 w^ell since his return from Virginia. He served in the early part 

 of the war as a captain in the Seventy-first Regiment of New York 

 Volunteers. For many years he had been devoted to the business 

 of bringing out new inventions, and was thoroughly versed in all 

 the business of the Patent Office. 



The resolutions were passed unanimously. 



NAPHTHA AS A FUEL. 



A large part of the evening was devoted to experiments with a 

 cooking range, in which the lighter products of petroleum are used 

 as fuel. As the inventor had previously appeared at the Farmers' 

 Club with the same apparatus, we refer to the proceedings of the 

 Club for an account of its operation. 



After a full discussion of the merits of this plan, in which the 

 danger of keeping the lighter products of petroleum was fully set 

 forth, the Association adjourned. 



