¹ We made these data available to Mr. Lawson at his request, a fact he fails to acknowledge.

² Moul, William B., “The Level of Analysis Problem Revisited,” Canadian Journal of Political Science, 6 (09, 1973), 494–513CrossRefGoogle Scholar.

³ Ibid., pp. 501–502.

⁴ The errors are: (1) our alliances number 55, not 54; (2) the Austria-Prussia pair has 21, not 20 alliances, and (3) the Austria-Great Britain pair has 12, not 13. These correct figures are used in the new analysis we report in this communication.

⁵ Rood, Robert M., “Agreement in the International System” (Ph.D. dissertation in Political Science, Syracuse University, 1973), 88, 183–201Google Scholar.

⁶ Kuh, Edwin, “The Validity of Cross-Sectionally Estimated Behavior Equations in Time Series Applications,” Econometrica, 27 (1959), 197–214CrossRefGoogle Scholar.

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⁸ Kaplan, Morton A., System and Process in International Politics (New York: Wiley Science Editions, 1964)Google Scholar, Preface.

⁹ Rood, , “Agreement in the International System,” pp. 159–163Google Scholar; Brams, Steven J. and O'Leary, Michael K., “An Axiomatic Model of Voting Bodies,” American Political Science Review, 64 (June, 1970), 449–470CrossRefGoogle Scholar.

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¹¹ That is, the patterned relationships of international conflict (magnitude of war within dyads) certainly are “specific interests which divide nations.”

¹² Feller, William, An Introduction to Probability Theory and Its Applications, 3rd ed. (New York: Wiley, 1968), 160–161Google Scholar.

¹³ Feller, , Probability Theory, p. 161Google Scholar.

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