237 



Ai'uilahh' .-iiKidr. — A table p^ives the results of each of the five runs 

 into whieii the (•auii)aiiin was divided at (^aluniet. including both 

 the aiiioMMt of siiiiai" accordini!' to the reirular foi-nnda and that which 

 Avas actually secured ; also a fornnda expressing the results. Tho 

 yield is the best ever obtained in l^oiiisiana by the milling ])rocess. 



X( ntriil r,s, iic'/d rl(irific((t'((/ii. — Ihe ditl'ert'nt methods of clarilica- 

 tion and the prices are discussed. " In all Louisiana siigarhouses 

 where suli)hur is used the juices are left slightly acid for the purpose 

 of securing an inij)roved coloi- in all the j)r()dncts. from first sugar to 

 final molasses, inclusive. 'Jliis |)ract.ice is followed both in open- 

 kettle and vacuum-pan sugarhouses. '•' * * As far as this 

 season's work was carried at Calumet the advantage lies entirely with 

 the acid clarification. By careful and expeditious working of tho 

 juice inversion was almost prevented: as large an amount of sugar 

 can be recovei-ed from the juice and the nuirkct value of the products 

 are invariably higher." 



As the result of the season's work, the average total sugar obtained 

 per ton of the v^hole crop of cane was 20(5.85 pounds. " From the 

 siruj) to the final product it is hard to see how the work could be 

 improved. The most noticeable feattire, and the one, I think, to 

 which the high yield may be attributed, was the remarkable .stiffness 

 to which the massecuites were boiled. In all grades of the material 

 as much water Avas driven off as Avas thought safe to do. By this 

 remarkabl}' good boiling an amount of sugar was recov^ered Avhich 

 leaves absolutely no room for comparison Avith the Avork of other 

 Louisiana sugarhouses. "'•' * * ^^llat has been done can be done 

 again, and Avhen the Louisiana planter adopts diffusion, and carries 

 his sugarhouse Avork to such a degree of perfection as has already 

 been attained at Calunu-t. it Avill be no unusual thing to hear that 

 250 pounds of sugar haA-e b;H'n obtained.'' The aA'erage in the State 

 heretofore has been about 125 or 130 pounds. 



BULLETIN No. 24. 



rRocEEnixGs OF 81XT11 Annual Conaention of the Association 

 OF Official Agricultik.vl Chemists (pp. 235). — This conA'cntion 

 Avas held in Wasliington. at this Department. September 10-12, 1889, 

 and its proceedings Avere edited by H. \K. Wiley, secretary of the 

 association. Besides a full account of the meeting, the bulletin con- 

 tains the official methods of analysis of the association for 1887-88, 

 including those for conunercial fertilizei's, cattle foods, dairy prod- 

 ucts, and feruieutiMl liquoi's. and a ])rovisional method for sugar 

 analysis. 



BULLETIN No. 25. 



A ropm>AR treatise on the extent and character of food adtjl- 

 TERATiONS. A. J. Wedderburn (pp. 61). — Tliis is a collation of "evi- 

 dence in regard to the extent and character of food adulteration, 



