work in each branch of the department, and papers which are descriptive and educational in character, together with suitable illustrations. The style, both of illustration and text, should be similar to that of a modern magazine.

160. Department Series of Bulletins (Including Professional Papers) and Reports.-Department bulletins shall be popular or semitechnical descriptions or discussions of facts or conditions of importance to agriculture. Papers that are essentially for the purpose of furthering agricultural propaganda and departmental policies will also be included.

(a) The Professional Papers series of the department bulletins shall contain those bulletins which present information in technical or professional language especially for the benefit of those engaged in highly specialized professions related to work of the department, such as baking, fruit packing, paper making, lumbering, cold storing, and the like.

(b) Papers for the series of reports of the Office of the Secretary shall be of value to agriculture and may include records of empirical data, statistical studies, and taxonomic investigations which are not suitable for publication as bulletins, Yearbook papers, or research articles.

161. Farmers' Bulletins.-Farmers' Bulletins shall be concise, simple, specific statements regarding subjects coming properly within the range of the department's activities. Statements of specific directions for procedure in modern farm practice are especially desired. These bulletins should be short, usually from 8 to 16 pages.

162. Journal of Agricultural Research.-Papers for the Journal of Agricultural Research shall be concise

reports of the essential data and conclusions of original research of direct or indirect importance to agriculture. Historical introductions, as well as bibliographies, must be reduced as far as is consistent with clearness. In general, an article should not be more than 10 to 12 pages in length.

163. Weekly News Letter.-The Weekly News Letter shall be a weekly summary in popular form of the more important practical discoveries and recommendations of all bureaus of the department, and also shall include sufficient additional matter relative to general policy, program, and progress of work on projects to enable the average reader to utilize intelligently the facilities of the department. It shall be a medium for making announcements of important changes in policy or organization and of giving circulation to other matters of kindred nature. It is designed for all persons directly concerned in the work of the Department of Agriculture and for those working in collaboration with the department. All matter for the Weekly News Letter shall, before being issued, have the approval of the chief of the bureau in which the information originated and of the Secretary.

164. Monthly Crop Report.-The Monthly Crop Report of the Bureau of Crop Estimates will contain statistical data relating to agriculture, including estimates of acreage, condition, yield, production, and prices and value of crops and live stock, in the form of tabular statements and such text summaries and comments as are necessary for their interpretation.

165. Service and Regulatory Announcements.— Each bureau charged with the enforcement of regulatory acts will issue monthly, or less frequently as the material warrants, service announcements in printed

bulletin form of standard size, bearing the name of the bureau, the number of the publication and date of issue, and the words "Service and Regulatory Announcements." These announcements shall contain a complete periodic record of all regulatory matters, including the text of the published notices of judgment, the text of decisions, the text or digest of notices of hearings, quarantine or other orders, extracts from correspondence, and such other information as establishes precedents or deals with service or regulatory matters of which the public should have notice.

If deemed desirable, the announcements of the Bureau of Chemistry on meat and food products under the food and drugs act may be printed in connection with the service announcements of the Bureau of Animal Industry, and other bureaus may make similar announcements in the interest of unity of publication.

Issuance of regular service and regulatory announcements will not supersede the publication, in other forms, of notices of judgment, quarantine, decisions, orders, or other announcements requiring immediate publication or which are necessary for the proper enforcement of the regulatory acts. Where individual publications are essential, however, they will be printed in bulletin size and the type held for reprinting in the service announcements.

166. Manuals and Handbooks.-When it is proposed to publish a voluminous manual, handbook, or treatise relating to any phase of the agricultural industry, the matter should be submitted to the Assistant Secretary in charge of publication activities for his approval before actual preparation of the manuscript is undertaken. An outline should also be prepared for the Assistant Secretary's information in

dicating in general terms the proposed treatment of the subject, its probable size, the number and character of illustrations, and such other information regarding its scope and purpose as will permit intelligent consideration of the matter.

167. Reference Lists.-In order to facilitate the use of different publications of the department upon related subjects, occasional classified reference lists, consisting of number and title, will be issued in both the Farmers' Bulletin series and the Department Bulletin series. These reference lists shall be classified broadly according to subject, and, when practicable, the group or section which is germane to the subject of a bulletin shall be printed on the back cover or upon blank pages.

168. Examination of Manuscripts and Proofs.-The following procedure shall be observed in the handling of manuscripts submitted for publication:

(a) With the exception of material for the Journal of Agricultural Research and the publications of the Weather Bureau all manuscripts, after being carefully edited by the bureau editor, shall be submitted, together with accompanying illustrations, to the Chief of the Division of Publications, to be reviewed for department policy, constructive criticism, and classification. Each manuscript should be accompanied by an explanation of the need for publication, recommendation as to classification, and a detailed statement concerning distribution and the edition desired. (See par. 153 of these regulations.) The Chief of the Division of Publications shall call to the attention of the Assistant Secretary in charge of publication activities all matters which are of an unusual character or concerning which no regulation has been made.

(b) All manuscripts intended for publication in the Journal of Agricultural Research shall be examined by the special editorial committee appointed for that purpose.

(c) Immediate consideration shall be given by chiefs of bureaus to all manuscripts or proofs referred to them for examination, which must be returned to the chief of the Division of Publications within three days after receipt, with recommendations or criticisms. (See "Outside publication," par. 171 of these regulations.)

169. Committee on Manuscripts.-The ⚫committee on manuscripts shall act in an advisory capacity to the Chief of the Division of Publications and the Assistant Secretary in charge of publication activities in connection with manuscripts submitted for publication or other matters connected with the publication' work of the department.

170. Editorial Committee of the Journal of Agricultural Research.-The selection of articles for publication in the Journal, all matters pertaining to its management, and the decision as to the separates to be reprinted therefrom, are vested in a special editorial committee appointed by the Secretary.

171. Material for Outside Publication.-Employees of the department, when requested to do so, may be permitted to prepare for publication textbooks and similar publications upon special subjects connected with the work of the department. Work of this character should not be permitted to encroach upon the time, energy, and attention required by employees for the effective prosecution of their departmental duties, whether in research, extension, or other work, and should be undertaken only after thorough considera