Harris & Harris Group Inc.

NEWS RELEASE

HARRIS & HARRIS GROUP, INC.	FEBRUARY 25, 2004
111 WEST 57TH STREET
NEW YORK, NEW YORK 10019
NASDAQ/NMS SYMBOL: TINY
CONTACT: CHARLES E. HARRIS
TEL. NO. (212) 582-0900

HARRIS & HARRIS GROUP NOTES NANOSYS AND DUPONT ANNOUNCEMENT

Nanosys, Inc. (www.nanosysinc.com) and the DuPont's Central Research & Development (CR&D;) arm have agreed jointly to research the use of Nanosys's nanotechnology-enabled high-performance thin-film technology for applications in electronics. Under the agreement, DuPont will work with Nanosys to explore how to incorporate Nanosys's technology into specific products such as thin films for electronics, according to the companies.

Harris & Harris Group, Inc. owns a 1.7 percent interest in privately held Nanosys, Inc. Nanosys is a company with broad-based intellectual property that is initially commercializing applications in macroelectronics, photovoltaics, and chemical and biological sensing. These applications incorporate novel zero and one-dimensional, nanometerscale materials, such as nanowires and nanocrystals as their principal active elements.

Harris & Harris Group is a publicly traded venture capital company that now makes initial investments exclusively in tiny technology, including nanotechnology, microsystems and microelectromechanical systems (MEMS). The Company's last 12 initial private equity investments have been in tiny-technology enabled companies.

Harris & Harris Group is a business development company with 13,798,845 common shares outstanding.

Detailed information about Harris & Harris Group and its holdings can be found on its website at www.TinyTechVC.com.

This press release may contain statements of a forward-looking nature relating to future events. These forward-looking statements are subject to the inherent uncertainties in predicting future results and conditions. These statements reflect the Company's current beliefs, and a number of important factors could cause actual results to differ materially from those expressed in this press release. Please see the Company's Annual Report on Form 10-K and recent Prospectus filed with the Securities and Exchange Commission for a more detailed discussion of the risks and uncertainties associated with the Company's business, including but not limited to the risks and uncertainties associated with venture capital investing and other significant factors that could affect the Company's actual results. Except as otherwise required by Federal securities laws, Harris & Harris Group, Inc. undertakes no obligation to update or revise these forward-looking statements to reflect new events or uncertainties.