Volume 12 of Progress in Allergy continues its search for the most recent advances in the field of allergy and immunology. The introduction is written by B. H. Waksman of Boston who also introduced volumes 7, 9, and 10 in this series; Kaldos of Helsingborg, co-editor of Progress in Allergy wrote the introductions to volumes 8 and 11. These able men in a few succinct pages of introduction have always described the more important facets of immunologic research. A reviewer could do no better than to quote from Waksman.
Shulman's review (Insect Allergy: Biochemical and Immunological Analysis of the Allergens) shows how a classical problem, the analysis of insect allergens, responsible for atopic allergic responses in human subjects, has entered upon a new and rapid phase of development with the application of modern biochemical and immunochemical techniques. A second review, that of Levine and Stollar of 'Nucleic Acid Immune Systems,'