QUANTITATIVE ANALYSIS:Elementary Principles and Practice

By HARVEY DIEHL, Iowa State College, and G. FREDERICK SMITH, Universityof Illinois. Provides a thorough grounding in chemical analysis, placing equal em-phasis on theory and practice, and stressing a sound knowledge of descriptive chem-istry. Includes a treatment of the versene method for determining the hardness ofwater, and the bathophenanthroline method for determining iron in water. Givescolorimetry equal rank with gravimetric and volumetric analysis. 1952. 539 pages.$5.00

NON-AQUEOUS SOLVENTS:Applications as Media for Chemical Reactions

By L. F. AUDRIETH, University of Illinois, and JACOB KLEINBERG, Universityof Kansas. Presents pertinent theoretical and physico-chemical aspects of selectedreactions with non-water solvents. It demonstrates the usefulness of non-aqueoussolvents and suggests practical applications of these solvents in synthetic andother special fields of chemistry. Shows what can be done in organic, inorganic, andanalytical chemistry, and what solvents may be used advantageously to effect specificreactions. 1953. 284 pages. $6.75

VEGETABLE GROWING, Second EditionBy JAMES SHELDON SHOEMAKER, Ontario Agricultural College, Guelph,

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CYTOCHEM ISTRY: A Critical ApproachBy J. F. DANIELLI, Kings College, University of London. Applies the rigorous

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NUMERICAL SOLUTION of DIFFERENTIALEQUATIONS

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PLANT ANATOMYBy KATHERINE ESAU, University of California. Emphasizes the developmental

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