This article first appeared in Architectural Science Review - March 1975. This series of reports on academic and professional issues is made possible by -drawing upon the "Director's Fund" of the School of Architecture (and in particular from donations from the Nova Scotia _Association of Architects and a grant from the Canada Council). Price: $1.00 CN lSSN 0078-2491 $ --I ", ;0 - .-- V> V> 3: - ;0 --I ;0 '" ::l a. " '" --I '" <--;0 c r 3: 2 -2 cO _ " :z c.n '"