staff
RICHARD PRATT SYLVIA
Editor
JERRY W. LAUQHLIN
Associate Editor
DOROTHY P. FERGUSON
Managing Editor
GRACE LESSNER
Editorial Assistant
ROLLIN NELSON
Art Director
JOANNE HUGHES
Production Manager
RAYMOND J. CASTELLANOS
Circulation Manager
RICHARD VINOCUR
Group Publisher
JOSEPH F. COSGROVE
Publisher
CORRESPONDENTS
Jay K. Bradish, Western Pa.-Western N.Y.
Robert Burns, Eastern
R.L. Nallen, Midwestern
David R. Frazier, Intermountain West
Cliff Dektar, Pacific Coast
Robert Swan, Pacific Coast
Donat Baird, Canadian
FIRE ENGINEERING (ISSN 00152587), August 1982, Vol. 135, No 8. Member, American Business Press and Audit Bureau of Circulations. Published monthly by Technical Publishing, a Company of the Dun & Bradstreet Corporation James B. Tafel. Chairman. John K. Abely, President. EXECUTIVE, EDITORIAL AND ADVERTISING OFFICES: 875 Third Avenue. New York, N.Y. 10022. Printed in Easton, Pa. 18042.
Subscriptions: Solicited only from paid or volunteer, Federal, state, county and local fire officials. Including military and Industrial fire protection engineers and consultants. Publisher reserves the right to refuse nonqualified subscriptions Address correspondence regarding subscriptions, Including change of address, to: FIRE ENGINEERING, 875 Third Avenue, New York, N.Y. 10022. Please Include your zip code and. In case of change of address, a copy of old address label. Single copy price: $3.00 Directory issue $4.00. Subscription rate for those In field of publication. U.S. and U.S possessions: $14.95 a year. $26.00 for two years. $36.00 for three years. Canada: $18.95 a year, $34.00 for two years. $48.00 for three years. Foreign. $27.00 a year. $49.00 for two yews, $65.00 tor three years Single copy price $6.00. Directory Issue $8.00. Second class postage paid at New York, N.Y. 10001, and at additional mailing offices. Printed In U.S.A. Trademark® In U.S. Patent Office. © Copyright 1982 by Technical Publishing, a Division of Dun-Donnelley Publishing Corporation, a Company of the Dun & Bradstreet Corporation. All rights reserved. No part of this publication may be reproduced or transmitted In any form or by any means electronic or mechanical, including photocopying, recording or by any information storage retrieval system without written permission of the copyright owner. Prices for bulk reprints of articles available on request.
The publisher, on written request will refund that part of the price applying to unfilled portion of the subscription it service is unsatisfactory
Technical Publishing
a company of The Dun & Bradstreet Corporation New York, N. Y. 10022-(212)605-9400