Several important series of balanced incomplete block designs can be derived from orthogonal factorial designs. One is the series on balanced lattice of Yates (1936); refer to page 396 of Cochran and ...

An arrangement of v varieties or treatments in b blocks of size $k, (k < v),$ is known as a balanced incomplete block design if every variety occurs in r blocks and ...

The Annals of Statistics, Vol. 3, No. 5 (Sep., 1975), pp. 1149-1162 (14 pages) Hedayat and John (1974) studied the case of resistance of a balanced incomplete block design (BIBD) to the removal of one ...

A graph G with vertex set V is said to be n-existentially closed (or n-e.c. for short) if, for every proper subset S of V with |S|=n and every subset T of S, there exists a vertex x in V-S such that x ...

DURING the course of recent work at the West African Cacao Research Institute, it became necessary to evaluate the products of small-scale fermentations of different types of cacao. Hitherto, samples ...