Corrections

December, page 40—In the first column there is an inconsistency in the notation between equations 15 and 18 on the one hand, and definitions 19a to 19c on the other hand. Equations 15 and 18 should read: $$\frac{{\mathrm{dX}}_i}{\mathrm{dt}}{\mathrm{\hspace{0.17em}=\hspace{0.17em}(A}}_i{Q}_i{\mathrm{-D}}_i{\mathrm{)X}}_i+{\displaystyle \sum _{\text{i≠j\hspace{0.17em}=\hspace{0.17em}1}}^n}{\phi }_{\mathrm{ij}}{X}_j{\mathrm{+\phi }}_{\text{0i}}{X}_i\text{\hspace{0.5em}(15)}$$ $${\displaystyle \sum _i}{\mathrm{(A}}_i{\mathrm{-D}}_i{\mathrm{)X}}_i{\mathrm{\hspace{0.17em}=\hspace{0.17em}\Sigma \phi }}_{\text{0i}}{X}_i\text{\hspace{0.5em}(18)}$$ where ${\phi }_{\text{0i}}$ represents the rates of “dilution” of constituent i. In the sequel, it will be assumed that ${\phi }_{\text{0i}}$ are independent of the index i.

Moreover, in the third column, line 18, for “increase of the quality factor” read: “optimization of the quality factor.”

April, page 18—The news story on unexpected hadrons should have said that the theorists who anticipated the possibility of a break in the hadron steep exponential were James D. Bjorken, Sam Berman and J. Kogut of SLAC. The correct initials for two of the other theorists mentioned are J. F. Gunion and J. C. Polkinghorne.