Pounds of coal consumed in twenty-one days, 430,338 ; average of 

 20,778 pounds per day. From tbe time the -fires were kindled until tbe 

 work was entirely finished was forty-five days, hence the total consump- 

 tion was 45 x 20,778=935,010 pounds. The total quantity of sugar made 

 was 1,150,768 pounds, therefore the consumption of coal per 1,000 pounds 

 of sugar was 906 pounds or 4.42 barrels. These figures do not include 

 the coal used in the revivification of the char. 



This house could be worked almost entirely without coal if the follow- 

 ing improvements were made : 



(1) Substitute copper coils for the iron ones now in use in the clari- 

 fiers. 



(2) Discontinue the practice of clarifying tbe juice after defecation. 



(3) Introduce a condenser employing juice to condense the vapors 

 from the double effect. An illustration of such apparatus is given op- 

 posite page 114, Ghem. Bulletin No. 5, and is there termed a Calorisateur 

 a contre-courant. 



(4) Substitute a low-pressure vacuum-pan for the one now in use. 



Under these conditions the juice-heater described in last year's 1 re- 

 port would not be necessary. It could probably be converted into a 

 condenser. 



The question of economical engines is of not so great importance, 

 since the exhaust steam is employed for evaporation. 



COMPOSITION OF THE JUICE. - 



The chemical work this season at Magnolia Station was not begun 

 until the 24th of November. Although the work of the sugar-house 

 nominally commenced November 7th, but very little cane was rolled 

 before the 13th. The analyses, therefore, show the composition of tbe 

 juice for all but eleven days of the season ; in which time 2,113 tons of 

 cane were rolled. The cane yielded 8 pounds less sugar per ton than 

 the next 2,000 tons, consequently it is fair to presume that it con- 

 tained less sucrose. 



1 Chem. Bulletin No. 11, page 8. 



