Dutton Speedwords: Pronunciation, page 1. Compiled by Raymond Brown from "Dutton World Speedwords" (3rd ed. 1946) and "Dutton Double-Speed Words Companion to Text" (3rd ed. 1946).
The 'short a' is probably meant to be the northern English and Midlands [a] rather than southern English [ӕ]; see Raymond Brown Dutton Speedword Pronunciation, page 1