sour-milk preparation shall be sold in said buildings unless it has been prepared from either milk or cream complying with one or both of the above requirements.

Determinations of quality of milk and cream will be made by the dairy division of the Bureau of Animal Industry.

Permits for the sale of milk, cream, or buttermilk will be obtained monthly by dealers from the chief clerk of the department in the form of cards countersigned by the chief of the dairy division. Persons delivering milk may be required to show these permits.

In the interest of cleanliness, all employees who buy milk, buttermilk, or cream for consumption with their luncheons in buildings occupied by the department shall rinse all containers as soon as emptied, regardless of whether they are to be immediately returned. 253. Canvassing, Peddling, and Soliciting Prohibited. Canvassing, selling tickets, or soliciting contributions for any purpose whatever will be allowed only when prior approval of the chief clerk of the department has been secured.

Peddling is prohibited in all buildings of the department. Employees in charge of rooms will see that this regulation is strictly enforced and will report immediately to the chief clerk of the department when peddlers appear.

254. Smoking.-Smoking is prohibited in any room used for the storage of stationery, supplies, and chemicals, or in any room containing explosives or other highly inflammable materials, or in any room or place in any building which is not constantly occupied and under the observation of employees of the department, or in any room where smoking would endanger public property or interfere with the transaction of public

business. Chiefs of bureaus are authorized to make such additional rules with regard to smoking by employees under their jurisdiction as will safeguard public property and avoid interference with the performance of official duties. "No smoking" signs should be

displayed in conspicuous places where necessary.

255. Display of Advertising Matter. The display of advertising matter in offices and laboratories of the department, including advertising calendars, is prohibited.

256. Personal Articles Lost or Found.-All personal articles found by employees in the buildings or premises of the department in the District of Columbia should be delivered to the office of the chief clerk of the department to await claim of ownership. Employees who may lose such articles in the places named should report the fact to the chief clerk of the department.

257. Mechanical Shop Work.-Mechanical work desired by the various bureaus of the department (exIcept the Weather Bureau and the Forest Service), such as carpenter work, cabinetmaking, painting, machine work, plumbing, etc., will be performed by the mechanical shops.

Requests for work of this character should be made on the form prescribed for the purpose.

The making of office furniture by the shops will not be permitted when standard articles that may be purchased in the open market will answer the purpose.

All shop work and the management of the heating and lighting plant shall be under the supervision of the mechanical superintendent.

258. Motion Pictures.-All projects for motion pictures to be taken by or for any bureau of the depart

ment shall be submitted, through the assistant in charge of motion-picture activities, to the Assistant Secretary in charge of publication activities.

In order to promote economy and efficiency the following rules will be strictly observed:

(a) No motion picture will be made until a definite and complete outline has been submitted and approved. Time should be allowed for the preparation of the scenario, its submission for the criticism of the committee on motion-picture activities, and its approval by the Assistant Secretary in charge of publication activities.

(b) Before a motion picture is taken, the specialist in charge of the project to be covered by the picture shall, if practicable, go over the ground in advance with the director of the picture and definitely map out the scenes.

(c) In the matter of cinematography, the opinion of the photographer as to the feasibility of taking the subject, proper lighting, etc., shall be final.

(d) So far as practicable, scenes not essentially related to a special region should be staged in or near the District of Columbia.

(e) Films should, whenever practicable, be nonsectional and nontechnical, so that they will be adapted for wide distribution and if possible be of service to the entire department.

(f) When deemed advisable, the department may manufacture positive film with the film stock and chemicals supplied by the purchaser, and sell the finished product for a price to cover actual cost of manufacture plus 10 per cent.

(g) When deemed advisable, the department may, under proper safeguards, arrange to place its nega

tives in the custody of a commercial motion-picture company for the printing of positive films for the use of the department or to be sold to authorized purchasers at a fair price per foot of positive film.

(h) Negatives may be rented to a commercial distributor or producer for general circulation, under terms and conditions approved by the Assistant Secretary in charge of publication activities.

(i) Motion-picture projection machines and cameras should be purchased only on the recommendation of the assistant in charge of motion-picture activities, with the approval of the Assistant Secretary in charge of publication activities.

(j) All shipments of motion-picture film from the city of Washington shall be made from the motion-picture laboratory; all incoming shipments should be consigned to the laboratory; all motion-picture cameras, projectors, film, and other motion-picture equipment shall be held in the custody of the laboratory and under the direction of the assistant in charge of motion-picture activities.

(k) Expenses for travel and subsistence in connection with the taking of motion pictures will be borne by the bureaus for which the pictures are made.

259. Arrival and Departure of Mails.-Mails are received at the department from the city post office at 8 a. m., 10 a. m., 12.45 p. m., and 3 p. m.

Mails leave the department for the city post office at 11.30 a. m., 2 p. m., and 4.30 p. m.

No registered mail will be received at the department post office after 4.15 p. m.

260. Registered Mail.-The privilege of free registration of official mail extended by law shall be taken advantage of only when registration of mail is necessary because of money or other equivalent contents, 85163°-19- -11

or because of unusual importance. Large shipments and packages of documents, reports, and similar matter should be sent as fourth-class matter or by express or freight, as the case may be.

261. Mail Sacks; Improper Use.-The use of United States mail sacks for storing records, books, and any other matter, and the dragging of filled mail sacks over floors and pavements in handling, is prohibited. The contents of mail sacks should be removed immediately upon receipt and the sacks returned to the Post Office Department.

262. Communication with Extension Agents.-All questionnaires, statistical information, and like matter involving the use of the extension system shall be handled through the States Relations Service. This service, in cooperation with the State agricultural colleges, shall represent the department in the development and conduct of the extension work and will cooperate with the bureaus of the department in all matters that may be properly taken up with the extension agents.

263. Mobilization of the Regular Army Reserve.Employees of the department are required, whenever mobilization of the Regular Army Reserve is directed by the President, to notify all reservists of whom they may have knowledge of the fact that mobilization has been ordered, whether the information reaches them

through official channels or through newspaper

notices.

Members of the Regular Army Reserve are soldiers of the Regular Army. They include men who, having served a portion of their enlistment periods with the colors, have been furloughed to the reserve for the remainder of their respective enlistment periods.