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417-451). - 2. IRWIN, J. is t C: A note on the subdivision of X into oomponents (Biometrika, 36, 1949, p.

130-134). - 3. KIMBALL, A.W.

: Short-cut formulas for the exact partition of *

n contingency tables (Biometrics, 10, 1954, p.

452-458). - 4. LANCASTER, H.O.: The exact partition of ^''and its application to the problem of pooling of small expectations (Biometrika, 37, 1950, p, 267-270).