18 



when the old evaporator was called into use. In like manner the 

 small evaporator was used to supplement the low-pressure evaporator 

 under the same conditions, thus saving much time. All the various 

 fittings required for the other work proved entirely satisfactory, and 

 the steam traps for the high-pressure coils removed the condensed 

 water without difficulty under all conditions. 



All of t he alterations in the factory were completed by November 1, 

 and Mr. Youmans began the grinding of the cane on the morning of 

 November 3. 



MANUFACTURING AND ANALYTICAL DATA. 



The cane was much like that of former years, both in appearance and 

 in richness. The sirup produced, however, was much more uniform 

 in quality, owing probably to a more careful attention to details in its 

 manufacture along the lines indicated by the experiments of the three 

 preceding years. The sirup was much darker in color than that pro- 

 duced in 1904, and no explanation of the difference was discovered. 

 It was thought that it might be due to the redissolving of a part of the 

 scum, since the filters were not used, but this explanation proved 

 inadequate, as a run with the filters was made and the filtered sirup, 

 while perfectly clear, was no lighter than the unfiltered. 



On November 28 the; work on the Youmans cane was completed 

 and the factory was operated by Mr. W. J. Smith until December 7, 

 making up about 4 acres of cane into sirup. The analytical work on 

 the juices produced from the Waycross cane was all done at the factory 

 and the results are given in Table IV. The figures in this table for 

 juice and sirup produced from the Youmans cane are averaged by 

 runs; that is, they are divided into periods at the end of which there 

 was no juice or semisirup in process of manufacture; and all the fin- 

 ished sirup was either packed or was measured in the tanks and de- 

 ducted from the next run. The tons of cane used are calculated from 

 the number of tanks of juice obtained, 1 J tons producing one tank of 

 juice on an average, as determined by the experiments of the preced- 

 ing years. While some of the juice records are known to be exact the 

 fact that there are discrepancies between the amount of sugar in the 

 juice and the total sugars in the sirup produced from it indicates that 

 the grinding record (number of tanks of juice) was in many cases 

 overstated. This explanation is the more probable as this record 

 was of necessity left in the hands of the clarifier man, and this position 

 was filled by three different men during the season. 



The record of the amount of sirup produced is accurate and shows 

 an excellent average per ton of cane. If the supposition that the 

 amount of cane used is overstated be correct this average should be 

 still higher. The working of the factory showed uniform improve- 

 ment over that of the preceding years. With only twenty-five days 



