Wash 56. *Pennington, M. E., and others. A study of the preparation of frozen and dried eggs in the producing section. ington, 1916. illus. 8° (United States Agricul 99 p. ture Dept. Bulletin no. 224.) Economics Div. "The frozen-egg industry, hardly 15 years old, is permanent, because it has developed as the direct result of an economic need. Many eggs, such as cracked, small, dirty, shrunken, and slightly heated eggs, commercially termed seconds, reach the first concentrating center in a wholesome condition, but if shipped in the shell to a distant consuming center they would markedly decompose and be entirely unfit for food purposes. The new industry believed that cracked eggs and seconds could be conserved by freezing out of the shell, and the baker thereby supplied with wholesome eggs at a reasonable price during the whole year.' - p. 4. This document of 100 pages by government experts is a detailed record of a study of the industry as carried on in a number of establishments scattered between northwestern Iowa and central Kansas during 1911 and 1912, and also of experimental work designed to improve equipment and operations, and to safeguard the product. There are seventeen full-page plates, several of which are colored. Bacteria in commercial bottled 57. *Obst, Maud Mason. waters. Washington, 1916. Agriculture Dept. Bulletin no. 369.) Economics Div. A 14-page Government Document showing methods of procedure and results of examination of water from each of 110 American springs and from 57 sources in foreign countries. Shows "the need of improvement in the bacteriological condition of many of the brands of bottled water to be found in the market. Careful consideration of cases to which special study has been given shows that there are some springs used for the production of commercial bottled waters which should not be so used... Such contamination could be easily ascertained before a water business is established... Before a person undertakes to operate a water business he should be prepared both in equipment and operating knowledge to turn out a product free from contamination. This is demonstrated to be commercially possible, without burdensome restrictions, by a number of firms already marketing water free from contamination." 58. Weeks, Arland Deyett, 1871-. The avoidance of fires, by Arland D. Weeks... Boston: D. C. Heath & Co. [1916.] 128 p., 4 pl. (incl. front.) illus. 16°. V, SX Although designed for use in the school-room the lessons of this suggestive little book might well be taken to heart by the parents. It tells in simple language about the nature and destructiveness of fire, the common hazards and methods of prevention, each chapter ending with a list of practical questions for the recitation. There is a good libliography at the end of the volume. LIST OF CURRENT PERIODICALS WHICH MAY BE CONSULTED IN THE TECHNOLOGY ROOM In order to relieve a growing congestion in the Periodicals Division, also to bring together current periodicals particularly useful in engineering work, a few selected classes, comprising about 400 titles, were transferred two years ago to the Technology Division. From this collection were excluded, with a few exceptions, certain subjects of a "popular" nature, notably: aeronautics, automobiles, boating, and motion pictures; also, for administrative reasons, publications relating to a number of other subjects. The following list, therefore, must not be considered complete. Furthermore it represents publications which are strictly current and excludes all titles which, owing to the war, have not been received for several months. Acetylen in Wissenschaft und Industrie. Halle a. S. semi-m. Acetylene journal. Chicago. m. AEG journal. Berlin. m. Affiliated Engineering Societies of Minnesota. Bulletin. St. Paul. m. American clay magazine. Bucyrus, O. m. American contractor. Chicago. w. American drop forger. Detroit. m. American gas light journal. New York. W. American Institute of Electrical Engineers. Proceedings. New York. m. American machinist. New York. W. American marine engineer. New York. m. American Peat Society. Journal. Toledo. q. American roofer. Chicago. m. American Society of Civil Engineers. Proceedings. New York. 10 times a year. American Society of Mechanical Engineers. Journal. New York. m. American Society of Naval Engineers. Journal. Washington. q. American Society of Refrigerating Engineers. Transactions. New York. bi-m. American Society of Swedish Engineers. Bulletin. Brooklyn. 10 times a year. American Society for Testing Materials. Circular. Philadelphia. irreg. American stone trade journal. Chicago. m. American Water Works Association. Journal. Baltimore. q. Annalen für Gewerbe und Bauwesen. Berlin. semi-m. Annales des mines. Paris. m. Annales des ponts et chaussées. Paris. semi-m. Applied science. Toronto. m. Archive für Electrotechnik. Berlin. bi-m. Armieter Beton. Berlin. m. Armour engineer. Chicago. q. Arms and explosives. London. m. Australian mining standard. Sydney. w. Berg und Hüttenmännisches Jahrbuch. Wien. q. Beton und Eisen. Wien. 20 no. a year. Better roads and streets. Jamestown, O. m. Black diamond. Chicago. w. The letters after the titles indicate the frequency of publication: irreg. irregular; w. = weekly; semi-m. semi-monthly; m. = monthly; bi-m. bi-monthly; q. quarterly; semi-an. = semiannual; an. = annual. = = [ 20 ] Boletin de mines. Lima, Peru. semi-an. Boston Society of Civil Engineers. Journal. Boston. 10 no. a year. Brick and clay record. Chicago. semi-m. Building age. New York. m. Buildings and building management. Chicago. m. Bulletin of the General Contractors' Association. New York. m. Canadian engineer. Toronto. w. Canadian mining journal. Toronto. semi-m. Canadian Peat Society. Journal. Ottawa. q. Canadian Society of Civil Engineers. Transactions. Montreal. semi-an. Carpenters' trade journal. New York. Cement era. Chicago. m. Central station. New York. m. m. Centralblatt der Hütten und Walzwerke. Berlin. 3 no. m. Chemiker Zeitung. Cöthen. tri-w. Chemische Apparatur. Leipzig. semi-m. Chemische Industrie. Berlin. semi-m. Chemische Umschau. Hamburg. m. Clay worker. Indianapolis. m. Cleveland Engineering Society. Journal. Cleveland. bi-m. Coal and coke operator and fuel magazine. Pittsburg. m. Coal mining review and industrial index. Columbus. semi-m. Coal trade journal. New York. W. Cold. Calcium, N. Y. m. Collegio Toscano degli Ingegneri ed Architetti. Bollettino, Firenzi. q. Colorado School of Mines. Quarterly. Golden, Col. q. Compressed air. New York. m. Concrete age. Atlanta. m. Concrete-cement age. Detroit. m. Concrete and constructional engineering. London. m. Concrete Institute. Transactions and notes. London. irreg. Connecticut Society of Civil Engineers. Papers and transactions. New Haven. an. Construction news. Chicago. w. Continental (in Spanish). New York. m. Contracting. New York. m. The Contractor. Chicago. semi-m. Dependable highways. Cleveland. m. Deutsche Techniker Zeitung. Leipzig. w. Dingler's polytechnisches Journal. Berlin. 26 no. a year. Dodge ideas. Mishawaka, Ind. m. Domestic engineering. Chicago. w. Drugs, oils, and paints. Philadelphia. m. The letters after the titles indicate the frequency of publication: irreg. = irregular; w.= weekly; semi-m. = semi-monthly; m. = monthly; bi-m. = bi-monthly; q. quarterly; semi-an. = semiannual; an. = annual. Electrical merchandise and selling electricity. New York. m. Electrical record. New York. m. Electrical review. London. w. Electrical review and western electrician. Chicago. W. Electrical world. New York. w. Electrician. London. w. Elektrische Kraftbetriebe und Bahnen. Berlin. 36 times a year. Elektrotechniker. Wien. semi-m. Elektrotechnische Zeitschrift. Berlin. m. Ellettrotecnica. Milano. 36 times a year. Engineer. London. w. Engineering. London. w. Engineering and contracting. Chicago. w. Engineering magazine. New York. m. Engineering and mining journal. New York. w. Engineering news. New York. w. Engineering record. New York. w. Engineers' Club of Baltimore. Journal. m. Engineers' Club of St. Louis. Journal. St. Louis. bi-m. Engineers' Club of Philadelphia. Proceedings. Philadelphia. m. Engineers' Society of Western Pennsylvania. Proceedings. Pittsburgh. m. except Aug. and Sept. English mechanic and world of science. London. w. Farben Zeitung. Berlin. semi-m. Farm cement news. q. Ferrum. Aachen. m. Feuerungstechnik. Leipzig. semi-m. Fördertechnik. Berlin & Wittenberg. semi-m. Foundry. Cleveland. m. Franklin Institute. Journal. Philadelphia. m. Fuel oil journal. Houston. m. Gas age. New York. semi-m. Gas engine. Cincinnati. m. Gas engineers' magazine & gas industries. London. Gas Institute news. Easton, Pa. m. Gas logic. New York. m. m. The letters after the titles indicate the frequency of publication: irreg. irregular; w. = weekly; semi-m. semi-monthly; m. = monthly; bi-m. bi-monthly; q. quarterly; semi-an. = semiannual; an. = annual. = = Illuminating Engineering Society. Transactions. New York. 9 times a year. Indian and Eastern engineer. Calcutta. m. Indian industries and power. Bombay. m. Industrial arts index. White Plains, N. Y. 5 times a year, cumulative. Ingeniero y contratista. New York. m. Ingenieur. The Hague. w. Ingenioren. Copenhagen. semi-w. Institution of Mechanical Engineers. Proceedings. London. irreg. Isolated plant. New York. m. W. W. Jefferson highway declaration. Des Moines. m. Journal of gas lighting and water supply. London. w. Journal für Gasbeleuchtung. Munich. w. Journal of industrial and engineering chemistry. Easton, Pa. m. Journal of the Institution of Petroleum Technologists. London. irreg. Journal of the Royal Society of Arts. London. w. Journal of the Technical League of America. New York. m. Journal des usines à gaz. Paris. semi-m. Die Kälte-Industrie. Hamburg. m. Kunstoffe. Munich. semi-m. Lighting journal. New York. m. Lincoln Highway Association. Press sheets. Detroit. W. Machinists' monthly journal. Washington. m. Mantel, tile and grate monthly. New York. m. Marine engineer and naval architect. London. m. The letters after the titles indicate the frequency of publication: irreg. = irregular; w. = weekly; semi-m. = semi-monthly; m. = monthly; bi-m. = bi-monthly; q. quarterly; semi-an. = semiannual; an. annual. |