The Government has found it necessary to so control the use of gold, silver and other precious metals that their waste or use in non-essentials will be limited and the supply conserved for such purposes as will help in winning the war.

This applies directly to every photographer, for silver is essential in your business. All of you use silver every time you use a film, a plate or a piece of paper. And every time you throw away a scrap of paper or pour a fixing bath into the sink you are wasting.

Photography is an essential business, but the silver that has been going down the waste pipes must be conserved - must find its way back into the channels of commerce.

Every photographer who is not already recovering silver waste should begin at once, for both patriotic reasons and the preservation of his own business.

You have helped to conserve food, have voluntarily made sacrifices that have more or less inconvenienced you, and you should be all the more willing to conserve this great photographic necessity.

If the supply of silver should be cut off you would soon be put out of business, for you must have sensitized materials. And since fully one-half of the silver in a plate or film or piece of paper goes into the fixing bath from which it can readily be recovered, your saving of this silver will help to prevent a further shortage and the serious curtailment of necessary photographic supplies.

Silver waste is worth almost three times what it was a few years ago, and its recovery is simple and inexpensive. If you have not found it profitable in the past, consider present conditions. Silver is worth a dollar or more an ounce. It requires about three ounces of the commercial form of sulphide of soda to precipitate an ounce of silver, sulphide of soda answering equally as well as the more expensive sulphide of potash for this_ purpose.

There are large photographic establishments that recover all the way from $500 to $1,000 a year from fixing baths, scrap paper and spoiled prints. You can recover in proportion and should be more than willing to do so because it is necessary as well as profitable conservation.

Pour all of your discarded hypo solutions into barrels. When a barrel is full, add about one quart of a freshly prepared, saturated solution of sulphide of soda. Stir well and allow to stand for at least twenty-four hours. At the end of this time dip out a graduate full of the solution and add a small quantity of the sulphide solution. If the solution remains clear all the silver has been precipitated. If a sediment forms, add more sulphide to the solution in the barrel.

It is important that barrels in which silver is being precipitated should be kept as far away from your work rooms as possible. The fumes from sodium sulphide are ruinous to sensitive photographic materials. Covering the barrels will help do away with the objectionable odor of the sulphide.

After all the silver has precipitated, pour off the clear solution, scrape out the sludge remaining in the bottom and place it in a sack, hanging this over the edge of the barrel until it has thoroughly drained. It should be as dry as possible before it is sent to the refiner.

To recover silver from paper waste it should be burned where there are no draughts, as the ashes contain the silver isn't worth while to save fixing solution, even if it is worth eight or ten dollars a barrel, but - you are doing a lot of things you don't like to do and are doing them cheerfully because they have been made necessary by war. Silver must be saved - you can save it - you will save it because it is a war measure and may also affect the life of your business.

Wet sludge, which has been thoroughly drained, amounting to twenty-five pounds or more, can be profitably handled by the refiners, or if thoroughly dried by heat, half this weight. It is best, however, to ship as large a quantity as possible at one time.

Some photographers find it is not practical to recover silver in the studio or directly on their premises because other tenants object to the odor of sulphide. In such cases it is worth while to accumulate a barrel or two of old fixing solution and take it away from the studio for the precipitating process. If barrels are not convenient to handle, five gallon cans that have contained oil are cheap and easily handled and may be had from most any garage.

Greatest Photographic Necessity Controlled By Gove StudioLightMagazine1918 190

FROM AN ARTURA IRIS PRINT

By Lauritz Bros. Los Angeles, Cal.

The following refineries will be glad to advise you on request as to the minimum quantities of waste they can profitably handle:

Handy & Harman,

Bridgeport, Conn. 31 Gold St., N. Y.

T. B. Hagstoz & Son,

Philadelphia, Pa.

Elizabethtown Smelting & Refining Co., Newark, N. J.

Emil Schneider,

Newark, N. J.

Philips & Jacobs,

Philadelphia, Pa.

Irvington Smelting & Refining Co.,Irvington, N. J.

Thomas J. Dee & Co.,

Chicago, 111.

Spyeo Smelting & Refining Co. Minneapolis, Minn.

Wildberg Bros.,

San Francisco, Calif.

Canadian photographers will be interested to know that shipments of such residues into the U. S. are not subject to duty.

Our Illustrations

It isn't so much the man himself but rather what he does that interests most of us. And yet when we see remarkable photographic work we like to know something about the man who made it.

Lauritz Brothers of Los Angeles were born in the northern part of Sweden and were operators in one of the leading studios in that country. They came to America six years ago, worked for a time with Sweet Bros, of Minneapolis, moved to California and opened a studio for themselves in Los Angeles the next year.

These two men have built an excellent business and a high-class business in what is almost record time, and their success from the beginning has been due entirely to their ability and the quality of the work they have produced.

They selected Artura as the paper having the most of quality and have used it exclusively in producing the excellent portraits that have made their Los Angeles business a success.

Our reproductions fall far short of the quality of the originals but will be none the less interesting, as allowances must always be made for the limitations of half tones and printer's ink.

The pictures you are planning to send to that Soldier of yours - they must soon be on the way if you would make sure that he has them to gladden his heart on Christmas morning.

There's a photographer in your town. Eastman Kodak Company, Rochester, N. Y.