1020 Transactions of tub American Institute. 



nuts in order is "svatclifulness. A check nut is the most simple 

 device we have. 



Diagram of Colors. 

 Mr. John Johnson, of Saco, Maine, presented a diagram of the 

 corapositon of various colors. The subject of colors w'^as selected for 

 discussion at a future meeting. 



Ice Machines in New Orleans. 

 Dr. P. H. Yanderweyde said he had recently traveled some 3,000 

 miles, and passed through eighteen States of the Union. At Xew 

 Orleans, on last Friday, 1,000,000 pounds of ice was sold in that 

 one day. While in New Orleans he inspected an ice machine 

 which was in successful operation. This apparatus was worked by 

 the ammonia process. There were six machines in operation, with 

 fifty-two compartments, filled with distilled Mississippi water. These 

 compartments are lined with ammonia pipes ; in about a minute 

 after the water comes in, it is converted into ice. They make 120 

 tons a day, which sells at four and five dollars a ton ; each of the 

 cakes of ice weigh some forty pounds ; they are about two inches 

 thick. The water is converted into ice, on an average, in one min- 

 ute and a half. At the World's fair in London, the ammonia ice 

 machine was first exhibited by Mr. Gary. It had two simple ves- 

 sels, a large and a small one. It was called the alternative ice 

 machine. No brass can be used about these ammonia ice machines, 

 because ammonia attacks that metal. He had a gasoline ice 

 machine which he was about getting into operation at New Orleans. 



Communications between New York and Brooklyn. 

 The regular subject for the evening being reached, tlie chairman 

 made a few introductory remarks concerning the necessity of action 

 in a subject of much ulteriDr as well as present importance. The 

 demands of the business portion of the community sliould be con- 

 ceded in preference to those of the shipping interests ; and, instead of 

 reaching out to White Plains, population should seek the one hun- 

 dred square miles of unoccupied land on Long Island, that lies within 

 easy access from the City Hall. Sooner or later, homes must be pro- 

 vided in New York and vicinity for 5,000,000 of people, and, as 

 in every other project of relgrm or advancement, agitation is neceS'- 

 Bary in this. 



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