The boiler-makers abounded. My old acquaintance, the Harrison boiler, turned up. Mr. Allen urged a favorable award to Mr. Harrison because of the motives of humanity by which he knew Mr. Harrison was actuated in designing that boiler. A Mr. Pierce invited all the judges to visit his boiler and hear him explain it. He informed us that this boiler had been the subject of three scientific tests by Professor Thurston, but he did not tell us the results of those tests. As we were coming away Professor Reuleaux said to me: “That _is_ foolishness, isn’t it?” An inventor named Smith came several times to our judges’ room to urge upon us the merits of his boiler. He had two on exhibition, one in use in the boiler-house and the other in Machinery Hall; these were quite different from each other. One day not long after the close of the exhibition I received a note from a stranger requesting me to call upon him at the Astor House. I thought, “This man doubtless wants an engine, but his time is too precious to come out to Newark,” so at the hour appointed I was there. When I entered the room the first object I saw was a sectional model of this Smith boiler, and I found that the gentleman wanted to know our reasons for overlooking that boiler. I replied to him that I had a question to which I would like an answer at his earliest convenience; we observed that the two boilers exhibited by Mr. Smith were quite different from each other, and I saw that this model differed in essential details from both of them, and I would like to know which one he wished us to approve of and bade him good afternoon. One day afterwards I happened to be in Mr. Holley’s office in New York when a man came in with a drawing of a boiler which he wished Mr. Holley to recommend. Mr. Holley turned him over to me, and he explained to me that the great novel feature of his boiler was that the feed-water was admitted by spraying it into the steam space, thus avoiding the cooling of any part of the boiler by its admission at one point; so I found one freak boiler that was not at the exhibition. We had a fine exhibit of steam fire-engines. I think every maker in this country was represented, and we had a trial of these engines lasting three or four days. The committee desired to make a thorough comparative test of their performance, but the man (a lieutenant in the navy) appointed to keep the record put down so few items that we found we had no record at all. We could only guess how he came to do this.