By E. S. Hanson,* Editor "The Contractor."

335. A record of every important detail of business -a record that has a meaning and a use - that is one of the purposes of system.

336. Business today is developing a new kind of record - automatic, accurate, incontrovertible - the photograph. To manufacturers and builders, to engineers and contractors, who are carrying out the vast constructive enterprises of the day, the photograph is coming to be a most important record.

337. To these men, who are accustomed to handling reports, drawings, profiles and blue prints, from one end of the day to the other, it is a positive relief to have a superintendent send in with his report, a photograph of the work as it actually stands when the report is made. And then, too, it verifies the report. Even the superintendent with the best of intentions is likely, at times, when the work has dragged, to convey the idea in a written report that more has been done than is actually the case. A photograph cannot very readily be made even to imply an untruth. And if the superintendent knows that a photograph must be taken at a certain time, he will put forth his best efforts in order that it shall show as great an amount of progress as possible.

338. Large construction companies, such as the Arnold Company, of Chicago, on all their work make photo-

graphs at uniform intervals of two weeks. These are all made a uniform size of 8 x 10 inches, and with "progress blue prints" of the same size they are fastened with eyelets in a heavy paper cover. These covers have printed on the outside the name of the job, date, name of customer, and location. Several sets are made up for each date. The covers are printed in quantities, the printer changing the date for each set. One of these sets is kept in the files of the main office, and one set at the office on the work. One set is also sent to the person for whom the work is being executed, or to each of them if there are more than one. A few are kept on hand for emergency and to show to prospective clients.

* Reproduced by permission of The System Co., Chicago.

339. The Usual Method Of Securing Photographs Of Work

The Usual Method Of Securing Photographs Of Work. A contract is made with a local photographer in each place where work is to be prosecuted. This contract specifies the exact size of the plates and the prints, the color, the style of finish and mounting, the price for the plate, and the price for prints. The plates in all cases remain the property of the company, and the photographer is not allowed to sell copies without permission. This is readily granted in most cases, however, and brings an added income to the photographer; he is also allowed to place his imprint on the back of each photo.

340. Where photographs are 8 x 10 inches or larger, most contractors prefer to have them mounted on muslin, with a hinge and extension for binding. Sometimes this is done on the smaller sizes, though these are more frequently printed on ordinary paper and mounted in an album, such as can be secured of almost any dealer in photographic supplies.

341. One of the higher refinements of photographic work has been worked out by one of the engineers of the Arnold Company in connection with the construction of the shops of the St. Louis and San Francisco Railroad, at Springfield, Missouri. Here, instead of a hit-and-miss system of taking anything which seemed to be of value from any desired point, the company established four points on

System for Handling Construction Work. 199 the job from which all views are taken. (See Illustration No. 77.)

System For Handling Construction Work Introduction 090088

Courtesy of The System Co., Chicago

Illustration No. 77 Construction Work - Location of Towers - Ground Plan See Paragraph 341

342. The ground on which the shops are being located is a rectangular piece about forty acres in extent, and has a considerable diagonal slope. At each corner of the rectangle a substantial but inexpensive tower was erected, the four of varying heights above the surface of the ground, but all uniformly thirty feet above the grade on which the buildings were to be placed. The buildings were to be sixty feet high, so that a camera placed on any of the towers would cover the buildings without distortion.