Tables of factors are provided for constructing prediction intervals to contain at leastp=m–lfuture observations from a normal distribution; the simplified new procedure for obtaining these factors is described. The tables pertain to selected values of the given sample size,n. the future sample size,m, and the number of items,M–l. in a future sample to be included in the prediction interval. Factors are given forn= 2(1)15(5)30(10)5O,∞,m= 20,25,30(10)80, andl= 1(1)8. An example demonstrates the use of the tables.