other is for the purpose of collecting storm water and discharging the same into the nearest water courses.

The Library of Congress, like other buildings in the older section of Washington, comprising approximately half of the District, are still served by the old combined sewer system. In replacing the Library sewer system, it is proposed to provide two separate sewer systems as now required by the District plumbing code.

The estimated cost of replacing the city water distribution system and sewer and drainage systems serving the main Library building and grounds with new, modern, sanitary, safe and efficient systems is $2,225,000.

It is urgently recommended that funds for this replacement be granted for the fiscal year 1964, in the interest of the preservation of the building and the public safety and public health.

Mr. HENLOCK. Mr. Chairman, here is a breakdown of the $2,225,000 estimate.

Mr. STEED. We will include this in the record at the conclusion of Mr. Stewart's explanation.

I believe with regard to the exhibits it would be well to include the document on pipe thickness that you made. This is a very large item and I think it would be well that we have as complete a record as possible on the need for it.

(The documents follow :)

Mr. STEED. You have asked for an increase to involve replacement of some plants. With the investment we have in the nursery, will that not meet the need here?

Mr. HENLOCK. We will benefit from the nursery. There is no question we will use plant material on all grounds under the Architect of the Capitol, as the material grows and develops a little further at the

nursery.

Mr. STEED. You don't think without the increase you could get by on the same money?

Mr. HENLOCK. NLOCK. I do not think there would be any serious effect if the $800 maintenance increase was not allowed for next year.

STATUS OF TILE REPAIR WORK

Mr. STEED. On this matter of repair of the tile, when do you antici

pate the completion of that work?

Mr. HENLOCK. May I ask Mr. Welsh to answer that?

Mr. WELSH. These particular items, sir?

Mr. STEED. The whole overall program.

Mr. WELSH. It will probably take us several more years to do this. We have completed the great hall area in the front of the building but the areas on the basement floor need to be done. It might take us as much as 3 or 4 more years.

Mr. STEED. Is the same situation true in connection with the ceiling repairs?

Mr. WELSH. We are nearer the completion of that than we are the floor tile.

PROPOSED NEW FIRE DETECTION SYSTEM

Mr. STEED. How many libraries do you know of that have this fire protection system installed now? Has this system been developed to the point where it is generally accepted as standard?

Mr. WELSH. It is a recently developed system that will give an alarm in the earliest stages of combustion.

Mr. RUBEL. There have been letters written by users of this fire detection system certifying that their installations performed satisfactorily, and very effectively. It is an early warning system_that does not require an intense amount of heat to make it operate. Even invisible products of combustion from a burning match will make it operate and cigarette smoke is readily detectable by the system. The latter feature is highly desirable in any building where smoking is prohibited by the authorities in charge.

Mr. STEED. I think since this is a fairly large item it would be well if we included the list of those who already have it installed, in the record at this point. When you get the transcript you can extend and supplement your support of the item :

(The information requested follows:)

(1) List of libraries and museums.
(2) Letters from:

Bancroft & Martin Rolling Mill Co.
Princeton University.

Westinghouse Electric Corp.

(3) Partial list of organizations.

The system we are proposing to install for the detection of fires, smoke and invisible products of combustion includes sensing elements which are activated by the microscopic and invisible airborne products of combustion. The sensing elements are tamper proof and are capable of providing an alarm immediately, and certainly substantially sooner than a conventionl sprinkling system could be triggered.

LIBRARIES AND MUSEUMS WHERE FIRE DETECTION SYSTEM PROPOSED Is Now INSTALLED

Bakelite Corp., Bound Brook, N.J., library stack.

General Motors, Allison Division, Indianapolis, Ind., engineering library room.

J. Paul Getty Museum, Los Angeles, Calif., museum building.

Museum of Modern Art, New York, N.Y., museum building exhibit halls.
Huntington Library, San Marino, Calif., library and museum building.
Newberry Library, Chicago, Ill., library building.

Seattle Public Library, Seattle, Wash., air conditioning systems.

United Nations, New York, N.Y., library area (storage and warehouse). The Hunt Library, Carnegie Institute of Technology, Pittsburgh, Pa., botanical library.

Yonkers Public Library, Yonkers, N.Y., library.

Chatham Public Library, Chatham, N.J., library.

Metropolitan Museum of Art, New York, N.Y., museum,

Sun Oil Co., Marcus Hook, Pa., library.

U.N. Library, New York, N.Y., library.

Detroit Public Library, Detroit, Mich., library.

Pierpont Morgan Library, New York, N.Y., library.

Brooklyn Library, Downtown, New York, air conditioning system.

we got into serious difficulties. It took just 4 minutes from the time the alarm went off before the fire department was here ready to solve our problem. We are very happy with the installation and thought you would like to know how this particular instance worked out.

Very truly yours,

KENNETH T. BURR, Treasurer.

PRINCETON-PENNSYLVANIA ACCELERATOR,

PRINCETON UNIVERSITY,

JAMES FORRESTAL RESEARCH CENTER,
Princeton, N.J., May 16, 1960.

Mr. S. P. LAWLER,
Marketing Manager, Pyrotronics,

Newark, N.J.

DEAR MR. LAWLER: In reply to your letter of May 10, 1960, I am enclosing photographs as requested.

The fire, to which you refer, was a very small fire occurring in a trash container used by one of the janitors. The fire occurred between 8:15 p.m. and 8:30 p.m. in the evening of March 29, 1960. The building fire alarm was automatically energized due to the smoke affecting one of the pyrotronic fire detection heads located in the corridor where the fire strated. Detection of the fire was early enough that personnel in the building were able to extinguish the blaze with damage limited only to a few floor tiles and acoustical ceiling tiles. The fire alarm system apparently worked entirely satisfactorily.

Very truly yours,

A. R. TRUDEL, Engineering Coordinator.

WESTINGHOUSE ELECTRIC CORP.,

TELEVISION-RADIO DIVISION, Metuchen, N.J., February 6, 1957.

PYROTRONICS NUCLEAR FIRE DETECTION SYSTEMS,
Newark, N.J.

Attention: Mr. Norbert Adams, Engineering Department.

You will no doubt be pleased to learn that our first real test of the Pyrotronic predector system proved very successful when a television receiver on continuous test caught fire the morning of January 29, 1957, at 6:53 a.m., spreading fire to several large paper cartons underneath.

As you know, the installation here is a difficult one for the system, with high ceiling and structural work. However, the alarm was received in the plant police office and the first was extinguished before sprinkler heads opened, holding our overall loss down to $100.

Sincerely,

MARK HERROLD, Plant Fire Marshal.

Mr. STEED. Is the $12,000 sidewalk item the one that was cut out? Mr. HENLOCK. Last year.

UNDERGROUND SPRINKLER SYSTEM

Mr. STEED. The underground sprinkler system for $20,000; would

you classify that as a desirable but not essential item?

Mr. STEED. If allowed, would it enable you to dispense with the