42 



Experience has taught us that there is a limit to the size of sugar- 

 houses, and that it costs very little more to man a 40-ton house than 

 a 20 ton, and the proportionate cost of constructing is greatly in favor 

 of the 40-ton plant. For sugar-houses of larger size, I can not yet give 

 accurate data with safety. 



The following is a plan based on calculations made from actual work 

 already done; the rules known to govern the situation are carefully ap- 

 plied and full allowance made for such errors. 



(1) The plan of a sugar-house complete for making sugar, according 

 to the process in use at Itio Grande. The sugar will be brown or yel- 

 low, and test 86 to 90. It is suitable for some domestic purposes and 

 for refining. The molasses will be of fair color, suitable for mixing and 

 baking purposes. 



These sugars can be washed in centrifugals and made quite white, of 

 high test, but at the expense of the yield. The proper place for them 

 is in a sugar refinery to be remelted and run through black. 



(2) An auxiliary house for making sirup and retaining the sugar in 

 the sirup. Inversion would have to be as carefully avoided as possible. 

 These goods or products would be very fine, and could be sold on their 

 merits for immediate consumption, or find a market on their tests and 

 color at the Central Sugar-House. 



The large vacuum pans referred to are well calculated to work up 

 goods in this condition, in immense quantities ; the sugar could be re- 

 melted and run through black. 



Dr. A. T. Neale, of the New Jersey Experiment Station, spent the 

 season at the sugar-house. He had control of the chemical department, 

 and results of his work will be found in a bulletin to be soon pub- 

 lished by that station. 



I respectfully submit the above report, with thanks to you personally 

 for your uniform courtesy and support. 



