150
Review of American Chemical Research.
On a New Form of Water Blast. BY B. B. BOLTWOOD. A m . Chem. /. ,20,577-58o.-The apparatus cannot be well understood without the diagram ; the orifice offered for the entrance of air and water is of such size that any appreciable friction is avoided and the energy of the jet is transmitted to a much greater volume of water than in the Richards or Muencke apparatus. These latter forms furnish only I . I times the quantity of air for water used ; this apparatus gives three times the volume of air for water employed. ____ TECHNICAL CHEnISTRY. G W.
ROLFE. REVIEWER
The Clarification of Cane Juice with Lime, Sulphur, and Heat. BY R. E. BLOUIN. L a . Planter and Sugar Mfy., 20, 375-379.-An important paper on clarification of cane juice. T h e author's conclusions which favor preliminary sulphuring of the cold juice, liming to neutrality, and subsequent heating as the most effective means of clarification, are borne out by the elaborate analytical data presented. The Use of Lime and Sulphur in Sugar House Work. BY E. W. DE-AIING. L a . Pla?zter and S u g a r Myr., 20, 379-381.~This paper contains many useful hints and notes on the application of these clarifying agents in factory practice. Double Sulphuration and Filtration. BY A. L. BARTHOLEMP. L a . Planter aitd Sugar Mfr., 21, 28-2g.-The author discusses the merits of the system. Centrifugal Defecation and Carbonatation. Sugar Beet, 19, 79-80. This article describes the Hignette method of cold defecation of beet-juice with lime and separation of the precipitate froin carbonatation by centrifugals. T h e advantages claimed are decrease of bulk of scums and consequent saving of sugar, amounting to 20 cents a ton. BIOLOGICAL CHEMISTRY. A.
G.WOODMAN, REVIEWER
Analysisof the Rhizome of Aralia Californica. BY WILLIAM R. MONROE. Am. J . Pharm., 70, 489-492.-The author has made a study of the rhizome in a fresh condition and has separated a volatile oil having a strong aromatic odor. Besides minute quantities of sugars and proteid matter he found considerable amounts of calcium oxalate.
