<PAGE>
<PAGE> 1
PROSPECTUS SUPPLEMENT
(To Prospectus dated August 1, 1996 and Prospectus Supplement dated
September 5, 1996. This Prospectus Supplement replaces and supersedes
Prospectus Supplement dated January 6, 1997)
[AIRGAS LOGO]
3,458,065 Shares of Common Stock
On December 19, 1996, the Selling Stockholders identified below loaned
shares of Airgas Common Stock owned by them to certain other Selling
Stockholders, described below. The Selling Stockholders holding the
borrowed shares may then sell all, or a portion or none of the borrowed shares
from time to time. All of such shares have been registered for sale by the
Selling Stockholders hereunder. The shares that are loaned by such
Selling Stockholders are subject to a loan and pledge agreement, under which
the borrower Selling Stockholder agreed to repay such shares on demand, but no
earlier than two years from the date of the loan, and pledged the same number
of its remaining shares to secure the obligation. The Selling Stockholders
retain the right to vote and receive dividends with respect to the pledged
shares.
The following table sets forth certain information with respect to
beneficial ownership of the Company's Common Stock as of December 20, 1996,
and as adjusted to reflect the transactions by the Selling Stockholders
discussed above and the inclusion of the Holdback Shares, and replaces the
information with respect to such Selling Stockholders set forth in the
Prospectus Supplement dated January 6, 1997.
Number of Shares Number of Shares
Beneficially Owned Shares Being Beneficially Owned
Selling Stockholders Prior to the Offering Offering After the Offering
____________________ _____________________ ____________ __________________
Barbra Wiener (1) 1,160,743 1,160,743 -0-
Barbra Wiener Family
Limited Partnership 698,756 698,756 -0-
Phyllis Wiener (2) 1,164,593 1,164,593 -0-
Phyllis Wiener Family
Limited Partnership 698,756 698,756 -0-
(1) Barbra Wiener is the daughter of Louis J. Wiener. Except as described
herein, includes shares held individually and by the Barbra Wiener Family
Limited Partnership. Includes 200,000 shares borrowed from Phyllis Wiener and
300,000 shares borrowed from the Phyllis Wiener Family Limited Partnership,
but excludes 200,000 shares loaned to Phyllis Wiener and 300,000 shares
loaned by the Barbra Wiener Family Limited Partnership to the Phyllis Wiener
Family Limited Partnership.
<PAGE> 2
(2) Phyllis Wiener is the daughter of Louis J. Wiener. Except as
described herein, includes shares held individually and by the Phyllis Wiener
Family Limited Partnership. Includes 200,000 shares borrowed from Barbra
Weiner and 300,000 shares borrowed from the Barbra Wiener Family Limited
Partnership, but excludes 200,000 shares loaned to Barbra Wiener and 300,000
shares loaned by the Phyllis Wiener Family Limited Partnership to the Barbra
Wiener Family Limited Partnership.
________________________
The date of this Prospectus Supplement is March 17, 1997.
<PAGE>
