FIRE ENGINEERING
250 Fifth Avenue New York, NY 10001 Tel. (212) 481-5771 Fax (212) 725-3654
EDITOR Thomas F. Brennan
MANAGING EDITTOR William A. Manning
ASSISTANT EDITOR Diane Feldman
CONTRIBUTING EDITORS
Gene Carlson Richard A. Marinucci
Ray Downey Paul McFadden
Vincent Dunn Robert Obermayer
Frank L. Fire Ed Spahn
Francis X. Holt Curt Weldon
CONSULTING EDITORS
Jack Bennett Walt Hendrick
Francis L. Brannigan Charles G. King
Hugh J. Caulfield Edward J. McDonald
Glenn P. Corbett Burton W. Phelps
Gerald L Grey
FEATURE DESIGN_Steve Hetzel
ILLUSTRATION Arthur Arias
PUBLISHER_Henry H. Dinneen
DIRECTOR OF
BOOK PUBUSMNO Daniel G. Smith
AovnmsiNG
COORDINATOR Denise M. Kissock
PRODUCTION
MANAOSR_Mike Paxton, Tulsa
CIRCULATION SSRVKIS, TULSA
Larry Lofton Patsy Russo
Circulation Mgr. Mgr. Paid Circulation
PENNWELL PUBLISHING COMPANY
P.0. Box 1260 • Tulsa, OK 74101 (918) 835-3161
CHAIRMAN_Philip C. Lauinger, Jr,
PRSSWBIT Joseph A. Wolking
GROUP
VICE PRESIDENT Joseph T, Bessette
SUWOUmONSl All subscription correspondence should be oddressed to Fire Engineering, P.0. Box 1289, Tulsa, OK 74101, or call 1 (800) 752-9768. Allow 30 days for change of address. Please include boA old and new addresses, ond enclose, if possible, an address label from a recent issue. Rates for U.S. and possessions: 1 yr. $21.95, 2 yr. $35.95, 3 yr. $49.95. Conoda ond other countries: 1 yr. $34.50,2 yr. $59.50, 3 yr. $78.50. Single copy U.S. $3.50, oAer countries $7.00.
FIRE ENGINEERING H—H (ISSN 0015-2587), is published monAly by PennWell Publishing Co., 1421 S. Sheridan, Tuba, OK 74112. May 1990, Volume 143, Number 5. Second-class postage paid at Tulsa. Executive, editorial, ond advertising offices at 250 Fifth Ave., New York, NY 10001. ^Copyright 1990 by PennWell Publishing Co. All rights reserved. Material may not be reproduced in ony form without written permission of the publisher. Fire Engineering is a registered trademark.
POSTMASTER: Send address changes to Fire Engineering, P.O. Box 1289, Tulsa, OK 74101.
